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  1. What Is The Right PAR For Vibrant Coral Coloration and Growth?NEW VIDEO! Reef Aquarium Lighting Guide
  2. https://mdshop.us/Light-Guide Properly lighting a reef tank is one of the most important considerations when planning a new aquarium or upgrading your lighting set-up. There’s a lot of information to sift through if you’re looking for answers online. The science of light and corals is a very complex and can get confusing, especially when you looking for straight-forward information. At Marine Depot, we get thousands of questions every month. Reef lighting is certainly at the top of the list! We are commonly asked, “What type of lighting do I need for good coral growth?” and “Which lighting fixture is right for my tank?” Although there can be a simple answer to these questions, it's important to understand the science that informs these decisions as well. Pretty much everyone knows that light is critical for keeping SPS and LPS corals. Many new reefers tend to blast the corals with as much light as possible, which research on captive corals shows isn’t ideal. In the early days of reef-keeping, aquarists bought the biggest, brightest lighting they could find. Everyone knew coral reefs thrived under direct sunlight. So, DIY reefers were trying to hang the power of a hundred suns over their tanks. That’s what the public aquariums were doing, so why not try the same thing at home? But it didn’t always work. The lights over-heated the water, some corals stopped growing, and others were burned. When it came to light, more was definitely not better. Today we understand a lot more about the lighting requirements of corals and other photosynthetic invertebrates. We tried to distill all this information down for you to make choosing a light less of a headache. The major factors to keep in mind when looking for a light are wireless controllability, programming modes, and a sleek form. However, the king of all these factors is the light’s PAR, which is the first thing you should look at. PAR stands for Photosynthetic Active Radiation. It is the range of light wavelengths used by symbiotic algae living inside coral tissue. PAR is the engine that drives photosynthesis and it’s photosynthesis that feeds coral. If your lighting rig is bright but doesn’t provide the right light spectrum, all your doing is burning electricity. Quality beats intensity! PAR covers the visible lighting spectrum but is heavy in the blue (400 – 500 nm) and red (600 – 700 nm) wavelengths. A light can be bright but not provide PAR. PAR is measured in “micromole photons per square meter per second” units. Thankfully there’s no math involved in figuring out a fixture’s PAR rating. Most of today’s top LED light manufacturers provide PAR specs for their fixtures making life a lot easier. They get these measurements by using a PAR meter. The sensor is first placed in the water, under the light. Readings are then taken at various depths and distances from the center of the LED array. PAR readings are plotted to show how the intensity of PAR drops as you move further from the light. You can use the manufacturer’s PAR data to get a rough idea of the amount of light your tank will receive with a particular light fixture. You can also take your own measurements with a PAR meter. PAR meters are a little pricey, but they let you see PAR levels at different levels in your reef. It’s very helpful for determining where to best place your corals or make adjustment to the lights. So what’s the right amount of PAR for corals? Marine biologists have conducted PAR measurements on tropical reefs where SPS and LPS corals thrive. The PAR levels range from around 150 to over 450 across the world. But what level will satisfy most corals in a home aquarium? Captive coral researcher Dana Riddle discovered that the ideal average PAR range for corals is 100-200 PAR. Too much PAR is both ineffective and actually inhibits photosynthesis, potentially damaging coral as well. 200-400 PAR will bring out vibrant coloration but sacrifices a little coral growth. Research suggests the corals may even develop brighter pigments to protect against excess lighting. The big takeaway is captive corals are happiest with moderate light intensity. Too much light will inhibit or harm the corals. There is no absolute rule on the perfect PAR for all corals, but a good starting point is 150 to 250 PAR. So, how do you choose the right light fixture for your tank? Start by looking at the PAR specs. They’ll give you an idea of the maximum PAR at specific depths. There’s also nothing wrong with going with a more powerful fixture as long as you can dial it back, which is especially helpful as you corals acclimate to a new lighting system. If you can’t find PAR data for a particular light, search online and see how other aquarists are using the fixture. Learning from the experiences of others is always valuable. SHOP LIGHTING: https://mdshop.us/Lighting WATCH LIGHTING VIDEOS: https://mdshop.us/Lighting-Videos READ LIGHTING ARTICLES: https://mdshop.us/Lighting-Articles
  3. https://mdshop.us/Phosphate-Checkers Today we are going to take a look at how to use the Hanna Phosphate checkers along with GFO to monitor and control and phosphate levels in your tank. There are a number of test kits on the market that will let you check on your phosphate levels but some of our favorites are the Hanna Instruments Phosphate checkers. Hanna offers two different checkers: the Low Range Phosphate and the Marine Ultra Low Range Phosphate Colorimeter, both of which operate similarly and are easy to use. These will let you know exactly what kind of phosphate levels you are dealing with. Check out our video on phosphates that we linked below to get a better idea of what these levels can indicate.The standard Low Range Phosphate checker will be more than enough for most aquarists. It measures phosphates levels between 0.00 ppm and 2.50 ppm with a resolution of .01 ppm and a accuracy of +- 0.04 ppm. The Ultra Low Range checker measures levels between .00 ppm to .090 ppm with a resolution of .001 ppm and a accuracy of +-0.02 ppm. The Ultra Low Range checker, having a smaller window of measurement and a higher degree of accuracy means that the ULR checker will be better for those really trying to draw a bead on their phosphates and get their levels down to zero. Using the Hanna Phosphate checker is pretty simple. The first step is to turn the checker on by pressing the center button. Once the screen is flashing “Add, C1” you are ready to get testing. Fill the cuvette 10 ml of water from your tank, and place it in the checker and close it. Press the button and wait until the screen reads “Add C2.” Remove the cuvette, add the appropriate reagent to it, and shake it for two minutes. Once all the powder is dissolved, place the cuvette back into the checker and hold the button until a timer appears on the display. Once the timer runs down, your phosphate level will be displayed. The only difference in using the standard phosphate checker verses Phosphorus ULR is that each checker has its own reagent to add to the water during testing. One of the most common ways to deal with phosphate issues is to use GFO. GFO or granular ferric oxide will bind the phosphates in your water to it as they pass through. Because of this, the GFO needs to have sufficient water flow. There are a couple ways that you can achieve the necessary flow in your system. The easiest way is to simply fill a filter media bag with it and place the bag in a high flow area of your sump or filter. Keep in mind that water takes the path of least resistance, so since you aren’t actively channeling the water through the GFO, its going to be a bit less effective at absorbing your phosphates. Also remember that GFO tends to have fairly small grains, so it is important to put it into a media bag with a small enough mesh size to prevent it from spreading through your tank. The second way to effectively employ GFO is through the use of a media reactor. For this method we will need a basic media reactor, a feed pump, some tubing, and it is usually a good idea to keep a ball valve on hand as well. First things first, we need to open up the reactor and remove the top sponge, Next we just fill the reactor with the appropriate amount of GFO and replace the top sponge and lid. GFO can have different filtration capacities depending on the quality of it and different size tanks will certainly require different volumes for it to be utilized safely and effectively. To figure out exactly how much GFO you need to use, the best practice is to simply follow the instructions on the specific GFO you are using; however, we do have a calculator on our site which we will link below to help you. Once your reactor is back together, attach your tubing to your inlet and outlets. In terms of pumps, the required flow rate again will vary depending on your system. If your pump is too strong, you can grind the GFO down on itself and it can blow out of the reactor and into your tank. If you pump isn’t strong enough, the GFO wont move enough and it will fuse to itself overtime, creating a solid block. What we really need to be aiming for is a slow sort of simmer, where you can see most if not all the GFO moving slowly and gently, just enough so that it doesn’t fuse. I will usually try to get a pump that may be just slightly stronger than what I think i might need, and tune it down to the desired rate using a ball valve. Hanna Phosphate Checkers: https://mdshop.us/HannaPhosphateCheckers GFO / Phosphate Removal Media: https://mdshop.us/PhosphateRemovalMedia GFO Media Calculator: https://mdshop.us/GFO-Calculator How to Lower Phosphate Video: https://youtu.be/fd55peZgBCE GFO Media Reactors: https://mdshop.us/Media-Reactors Use Hanna Checkers to Dial-In 2-Part Dosing Video: https://youtu.be/z7jgm6HMyzA
  4. How to Control Phosphate Using Hanna Phosphate Checkers and GFO MediaPLUS: New gear from GHL, Eheim, Coral Essentials, and Brightwell Aquatics!
  5. MarineDepot

    Reserve Your Reefer Deluxe Today!

    Reserve Your Reefer Deluxe Today!Now outfitted with Red Sea’s new ReefLED lights!
  6. Reef Octopus: Pay Over Time - 3, 6, or 12 months!Pay as low as 0% APR Financing on Reef Octopus with AffirmClick here to get pre-qualified (checking your eligibility won't affect your credit score!)
  7. We sold out of the Neptune Systems Trident 🔱 in about 10 minutes this morning.The good news: we'll have more on the way soon!If you're interested in picking up a Trident, click the "notify me" button on this page and we'll send you an email once they return: https://mdshop.us/Trident
  8. Birthday Sale: 10% off Waterbox Aquariums Frag Series TanksSave up to $190 on select Waterbox tanks!
  9. https://mdshop.us/Skimmer-Overflow-Tips “Why is my protein skimmer overflowing?” - This is one of the most common questions asked in reef keeping and today we are going to look at the reasons why. #proteinskimmer #proteinskimmeroverflowing #proteinskimmeroverflow The good news is that an overflowing skimmer is not broken or defective. Let’s talk a bit more about protein skimmers to help us understand how they work and what can cause them to overflow. When food, livestock waste, or any decomposing organic matter breaks down in your aquarium, it forms organic compounds in the water column. Each molecule of these compounds has one side which is positively charged, and one side which negatively charged. These charges are the reason you may see an oily film on the surface of tanks that don't use a protein skimmer. One side of the molecule is attracted to the water while the other (side of the molecule) is repelled by it, drawing them to the surface. Just as the charged waste molecules are attracted to the surface of the water, they are also attracted to the surface of the tiny bubbles created by your skimmer. As the bubbles rise through the skimmer body, they collect these waste molecules. Once they reach the top, they form a foam that will overflow into the skimmer cup and can be easily removed. Occasionally, the skimmer can overproduce foam, quickly filling the cup and resulting in an overflow. Within the first two to four weeks, it pretty standard for your skimmer to overflow. Until the body builds up the appropriate "biofilm", the skimmer tend to act pretty erratically. Adding activated carbon to your filtration and doing additional water changes will reduce the viscosity of your water, causing less foam and fewer overflows. It's also pretty standard for skimmers to overflow during tank cycles. Since there typically isn't much waste in the tank during this period, its ok to just leave your skimmer off until the tank is cycled. Outside of removing waste from your water, another benefit of skimmers is that they heavily oxygenate your water. If you still want this oxygenation during your tank cycle, feel free to leave your skimmer on and just remove the collection cup. Whenever you add new chemicals to your tank, they are going to change your water chemistry. As skimmers are very finely tuned, even the smallest changes can affect their performance and will often result in an overflow.Some of these overflow perpetrators include Water conditioners, bacteria mixes, oily foods, medications, and frag epoxies, but the list goes on. Another culprit that tends to fly under the radar is fresh filter socks. Often times when filter socks are produced, they will have some sort of residue left over on them from manufacturing. When introduced to your tank, this can unfortunately get into your water and cause your skimmer to go crazy. A quick rinse of the socks before installation will fix this problem and make your life much easier. Even household cleaning solutions such as soaps and air fresheners sprayed near the tank can change your water chemistry just enough to trigger an overflow. Again, carbon is your best friend here and is great for pulling these undesirable chemicals out of your tank. If you are introducing medication directly to your main tank, expect your skimmer to go haywire. Unfortunately, the skimmer is going to overflow until you are done medicating and all of the excess chemicals have been pulled out either via carbon or water change. Remember to always check your skimmer’s user manual for its recommended water level. Although nearly every skimmer allows you adjust its internal water level, this can only go so far. If the water level in your sump is too high it will elevate the foam to a point where there is too much running into the cup, once again resulting in an overflow. If you find that your water level is too high, a number of companies sell skimmer stands just for this reason. Make sure to keep up on your regular maintenance as well. Just soaking the pump parts in a vinegar and water solution and giving them a quick scrubbing with a toothbrush will greatly increase your skimmers performance. Don’t forget to clear your venturi’s airline of any blockages as well. If you find yourself with an overflowing skimmer, just remember to ask, "what's changed?" Have you recently done a major water change or started dosing medication? Did you just switch out your filter socks or change to a new frozen food? Did you see the first spots of ICH on your fish and dose and medicate your tank in a panic? The simplest way to solve a overflowing skimmer is just to figure out what is different from before. Let us know your experiences with overflowing skimmers and how you handled them in the comments below. If you found this video helpful, please share it with your friends and don’t forget to subscribe for similar videos. As always, Take care and enjoy the reef-keeping journey.
  10. How to Stop Your Protein Skimmer from OverflowingPLUS: Enter the Photo of the Month Contest presented by Marine Depot!
  11. 50% off Simplicity Dosing Container w/ Purchase of ATI Essentials Pro!PLUS: Enter our Red Sea and Clear Water Scrubber Giveaways!
  12. Reefer Skimmer Video & Giveaway + Pro Aquarium Bundles + New Gear from Eshopps!PLUS: 15% off JBJ Chillers and our Product Review Drive End Soon!
  13. Check out these Marine Depot Controller Board installations!Organize Your Equipment and Hide Your Cords with Marine Depot Controller Boards!Check out these videos about Marine Depot Controller Boards: https://mdshop.us/controller-board-videosCheck out more Marine Depot Controller Boards installation photos: https://mdshop.us/controller-board-installations [/URL]
  14. https://mdshop.us/Reefer-Skimmers Red Sea has been known for the attention to detail and the quality of life features that they put into their tanks for quite a while. They have taken their expertise applied it to their new line of Reefer RSK Skimmers. Today we are going to take an in depth look at the assembly of the new Red Sea Reefer Skimmers and walk through a few of the features that separate this skimmer from others on the market. Don’t forget to stick around till the end of the video because we are giving one of these skimmers away. Longtime hobbyists may recall Red Sea's C-Skim skimmer line which, while innovative at the time, was not terribly well-received by the reefing community. As Red Sea continues to branch out into other product lines, with ReefLED lights debuting this summer and Gyre-inspired ReefWave pumps coming out later this year, the company has a lot riding on the success of the Reefer Series skimmers. Satisfied early adopters and positive word-of-mouth may create a wave of momentum they can ride to more successful product launches. As fans of the brand, we hope that is the case! The skimmer comes in three different sizes to take care of tanks with a heavy bioload from 80 gallons to 240 gallons and tanks with light bioloads from 240 gallons to 740 gallons. -- PRODUCT LINKS -- Red Sea Reefer RSK-300 Protein Skimmer: https://mdshop.us/RSK-300 Red Sea Reefer RSK-600 Protein Skimmer: https://mdshop.us/RSK-600 Red Sea Reefer RSK-900 Protein Skimmer: https://mdshop.us/RSK-900 All Red Sea Brand Aquarium Products: http://mdshop.us/Shop_RedSea MARINE DEPOT'S RED SEA REEFER RSK-600 VIDEO GIVEAWAY: There is no purchase necessary to enter to win the Red Sea Reefer RSK-600 Protein Skimmer featured in this video. Making a purchase will not enhance your odds of winning. To enter, you must like this video, subscribe to our YouTube channel, and leave a comment on this episode to let us know which feature(s) you are most excited about for this new protein skimmer. This contest ends May 9, 2019. We will announce our winner May 10, 2019. Proof of ownership of the Google/YouTube account may be required to claim prize. We will attempt to contact the winner via YouTube and/or through their Google account as well as provide our email address in all contest winner announcements. You must be a resident of the United States age 18 or older to win. Void where prohibited. The prize can only be shipped to an address within the U.S., no exceptions. We will not ship the prize to a P.O. Box or hotel. Your odds of winning depends on the number of entries we receive. One (1) winner will be randomly selected from all eligible entries using a random number generator. YouTube is NOT a sponsor of this contest. YouTube is released from all liability relating to this contest. The only personally identifiable information collected for this contest will be the name, telephone number, and shipping address of our winner. Entries that do not adhere and agree to these rules and YouTube's Terms of Service will be disqualified. YouTube Community Guidelines: http://mdshop.us/YouTubeCommunityGuidelines YouTube Terms of Service: http://mdshop.us/YouTubeTermsOfService
  15. https://mdshop.us/Nano-Reef-Mistakes Since the creation of the Nano Cube, small reef aquariums have become enormously popular. Nano tanks offer a convenient way to keep a reef aquarium when space, budget, and time are limited. For those of you just starting out, a nano tank is simply a small aquarium—typically anything below 40 gallons. At Marine Depot, we've been helping nano reef hobbyists succeed for over 20 years. We've distilled all our years of knowledge into this episode to help you avoid many common pratfalls new hobbyists fall victim to. We've also shared some simple best practices that will set you on a course for success when you're first starting out and in the years to come! #nanoreef #nanoreeftank #nanotank -- TOP 10 NANO REEF AQUARIUM MISTAKES -- Mistake #1: Moving too Fast 0:51 Mistake #2: Irresponsible Stocking 2:11 Mistake #3: Overfeeding 4:09 Mistake #4: Using Tap Water 5:28 Mistake #5: Not Enough Water Changes 6:25 Mistake #6: Fussing with a Nano Skimmer 7:17 Mistake #7: Neglecting Filter Media 8:11 Mistake #8: Manually Topping Off with Freshwater 9:11 Mistake #9: Not Testing Your Aquarium Water 9:55 Mistake #10: Neglecting The Basics 10:54 -- SHOP NANO TANKS -- Nano and Pico Tanks: https://mdshop.us/2UBp1lB Shop By Tank: https://mdshop.us/2UBqc4v Nano Tank Lighting: https://mdshop.us/2UCrAUb Nano Skimmers: https://mdshop.us/2UyUkxm -- NANO FISH RECOMMENDATIONS -- Species Compatibility Checker https://mdshop.us/2UyNdoA Nano Fish: Small Size, BIG Personalities http://mdshop.us/NanoFish Starting Your First Saltwater Aquarium? Here Are The Top 5 Best Beginner Saltwater Fish https://mdshop.us/BeginnerFish