Online Discount Pet Supplies & Toys For All Animals
Buy today, ships today
Free shipping on orders over $75
40,000 pet products
Buy today,
ships today
We promise to ship your order as fast as humanly possible. In fact, 99% of orders placed before 2 pm EST (M-F) ship the same day! Learn More
FREE Shipping on
Orders Over $75
Standard ground shipping (1-7 business days) starts at a low $5.99 and most orders over $75 ship FREE. Learn More
40,000 Pet Products
We carry over 40,000 pet-related products for every pet in your home. We stock all the popular products you’ll find in your local pet store, but sell them for less! See Specials
Your cart is currently empty.
Home » Aquarium Supplies  » Filter Media  » Biological  »  Warner Marine ecoBAK BioPellet Filter Media 500 mL
Warner Marine ecoBAK BioPellet Filter Media 500 mL

Warner Marine ecoBAK BioPellet Filter Media 500 mL

Average Rating 4 6
Write A Review
Product Review
We value your opinion & experience
Thank you for taking the time to review our products!

This is a Product Review for: Warner Marine ecoBAK BioPellet Filter Media
Name to display on the review:
Location (ex: Anaheim, CA):
Your experience level:
How would you rate this product?
Review Title:
Write your review:
(Please focus on product quality and performance)
In Stock: Order by 2PM EST for same-day shipping (M-F only)
Item #:
Notify Me
Just enter your email address below and we'll let you know when the product you are looking for becomes available!

Item Code:
Your Email:
Add to Cart or Notify Me
This item is temporarily unavailable but will be back in stock soon.

Item #
Click the Add To Cart button below if you'd like to reserve this item today. Any other items included in your order will be immediately processed and shipped. We will ship this item separately as soon as it arrives. We will not charge you for this item until it ships and you will incur no additional shipping charges.
Enter your email address in the field below and click the Notify Me button if you'd like us to send you an email when this item becomes available. Although you will be immediately notified when we have stock on hand, we will not reserve any units for you; you must return to our website and place an order.

+ Add to Wishlist
Add to Wishlist
Select Wish List:
Comments (up to 200 characters):
Quantity Desired:
Quantity Received:
FREE Shipping Promo offers FREE standard ground shipping via UPS on orders of $75 or more for orders containing non-sale items (orders which do not qualify for our FREE shipping promotion will still be shipped at a discounted rate). All orders, including those that qualify for our FREE shipping promotion, are subject to shipping insurance charges at the rate of $0.35 per $100.00 increment for orders shipped via UPS ground service (a minimum of $0.35 per box will be charged for insuring shipments).

Terms and Exclusions:
  • Offer valid only on orders shipping within the contiguous United States. Orders sent to Alaska, Hawaii, Puerto Rico, Guam or other US Territories will not qualify for this promotion.

  •'s FREE shipping promotion does not include products sent in oversized or particularly heavy boxes. This may include but is not limited to chillers, external water pumps, metal halide magnetic ballasts, DIY kits and substrate/sand. These items may still be subject to additional shipping insurance and special handling charges. Should shipping surcharges apply, they will be noted on individual product pages and also displayed in the shipping cart. We will, however, pay a portion of the shipping charges for these orders.

  • Shipping surcharges, such as shipping insurance and special handling are NOT covered under the FREE shipping promotion.

  • Shipping charges for returned merchandise is non-refundable. Please read's Return Policy for more information
These exclusions are necessary in order for us to be able to offer this type of promotion to our customers. We do our best to discount shipping as much as possible to make buying items from our online store easy and affordable.

Warner Marine ecoBAK BioPellet Filter Media 500 mL Information

  • Bio-Degradable Polymer filter media.
  • Patent Pending Formulation
  • Developed exclusively by Warner Marine
  • Lowers levels of dissolved organics
  • Reduces Nitrates and Phosphates
  • Lasts up to 12 months
  • Safe, effective and easy to use
EcoBAK is a unique and revolutionary product that will change the way marine and reef aquariums are maintained. EcoBAK is a biodegradable polymer that serves as both a substrate and a stable and consistent organic Carbon food source for bacterial strains that consume organic compounds including Nitrate and Phosphate. In effect, ecoBAK reduces nuisance algae clarifies water and supplies Planktonic bacteria as a food source for corals in the reef aquarium. EcoBAK works naturally, with NO harmful chemical additives.

What’s this mean for your tank?

You will now have water quality that previously could ONLY be obtained by frequent water changes, giant protein skimmers and expensive Zeolite systems.

You will have less problems with nuisance algae, your corals will grow better and look better (better colors) and your fish will be healthier. You will be able to feed your system more food as you no longer have to worry about raising your Phosphate and Nitrate levels.

How do you do it?

Place the ecoBAK in a suitable fluidized reactor or in many instances a media bag. Run approximately 100gph of flow thru each liter of media. Make sure you run a protein skimmer and make sure it’s working well. If possible, run the output of the reactor into the same sump area as the intake pump for the skimmer.


Use 250ml per 50 gallons of water volume. Rinse the ecoBAK pellets in purified fresh water. The pellets can be soaked overnight to reduce floating pellets. Add the rinsed pellets into a fluidized bio-pellet media reactor. Attach a small pump to the reactor and adjust flow to approximately 100gph per liter of ecoBAK. The proper amount of flow will create a gentle tumbling effect inside the reactor. Direct the output of the reactor into the same area as the protein skimmer pump intake. Within 3-4 weeks the ecoBAK will be sufficiently colonized with bacteria to begin reducing organic compounds. Aquariums with high bio-load may experience a short period of temporary water cloudiness. Tips for best performance:

Start off with 1/3 of the recommended dosage of ecoBAK and add another 1/3 every week until a full dosage is employed.

Remember to run a GENTLE tumble. An overly aggressive tumble is counter productive.

Aquariums with very high Nitrate and Phosphate (Nitrate 40ppm+, Phosphate 2ppm+) should start off slowly, with 1/4 dosage of ecoBAK, confirm proper function of protein skimmer and confirm that circulation pumps are running and agitating the water surface.

Make sure your protein skimmer is properly rated for your aquarium. Protein skimmer manufacturers frequently exaggerate the capacity ratings of their skimmers.

Replace ecoBAK as it is consumed by bacteria.

Warner Marine ecoBAK BioPellet Filter Media 500 mL Reviews

Average Rating
(6 reviews)
Sort Reviews By:


Reviewers Rating Great

Posted: 6/4/2014 from KAILUA, HI UNITED STATES
3.5 5
Experience Level: Expert

Comments: I use many products in the quest for "less than detectable" levels of nitrates. I use polyfilters religiously and a protein skimmer sized 10 times larger than recommended. My refugium is packed with macro algae and I harvest weekly. I added this product on a whim, I purchased 3 next reef MR1XL media reactors (biopellets, purigen, chemipure elite) as "scrubbers" for my system. The product will do what it advertises when directions are followed. I think the best thing I can do is to share my flow rates as no one has given pump/flow/reactor info. So here's what I have experienced. Using 1L of the ecobak in the MR1XL will require a minimum of around 225GPH flow. I connected it directly to an Eheim 2217 to test and found it tumbles nicely (2217 rated at 264GPH). From this I can forsee it tumbling at lower flow in a smaller diameter reactor (the MR1 is 4"). The ecobak pellets expand approx. 1.25 times in volume (not size) when tumbling so my MR1XL could easily hold 2 liters, 3 would be the very max and might actually top out the reactor in flow rates above 300GPH (which will foul the tumbling). I'd expect this data to very similiar among all the biopellet manufacturers. Hope this helped in your product and hardware choices, I also have similiar reviews for flows under the MR1XL and purigen products. Aloha

Did you find this review helpful? Yes No

warner biopellets

Reviewers Rating Unsatisfactory

Posted: 5/28/2014 from SAN DIEGO, CA UNITED STATES
0.5 5
Experience Level: Intermediate

Comments: sorry, i tried this for 2 months and my experience with this product wasn't that good. it started slimming up my sump, protein skimmer, etc... within a month and desolved quickly.

Did you find this review helpful? Yes No

Great Product!!!

Reviewers Rating Excellent!

Posted: 5/10/2014 from Clovis, CA UNITED STATES
5.0 5
Experience Level: Intermediate

Comments: I have been using the Warner Marine ecoBAK biopellets for over a year now and my Nitrates have been ZERO ever since. Make sure your reactor keeps them tumbling so they don't clump together and they will work perfect. I would highly recommend this product to anyone in this hobby who struggles with Nitrates & Phosphates.

Did you find this review helpful? Yes No

Magic in a Bottle!

Reviewers Rating Excellent!

Posted: 8/23/2013 from BELTON, SC UNITED STATES
5.0 5
Experience Level: Expert

Comments: I've been using Warner Marine ecoBAK Biopellets for almost two years now. Before using these, I had good water parameters but could never get my Nitrates below 10-15 ppm. I did a little research and decided to purchase a media reactor and try out some biopellets. That's when the magic happened! Setup of the media reactor was simple (probably the easiest piece of equipment in this hobby to set up). I added about 250ml of Warner Marine ecoBAK biopellets, ran them for about a week, then added another 250ml. I run +/- 500 ml on my 90 gallon tank (total tank volume with sump and filters is closer to 115 gallons). I flow the water through the media reactor faster than most recommend, but I prefer that the biopellets stay suspended and churning so that they do not stick or clump together. After about three weeks of running the Warner Marine ecoBAK biopellets my Nitrates flat-lined to ZERO (0). That's right...ZERO, NIL, NOTHING, NOTTA, ... Since that time whenever I check my water parameters, my Nitrates are always ZERO, and my Phosphates are near ZERO also. Water clarity is also amazing! I have a reef tank with a tons of LPS (lots of frogspawns, branch hammaers, torch corals, acans, trumpets, etc.), SPS (birdsnest, acros, etc.), mushrooms, clams, polyps, and multiple species of fish including 1-Blue Jaw Trigger, 1-Anularus Angel, 2-Snow-Flake Clowns, 1-Four-Line Wrasse, 1-Malunarus Wrasse, 2-Blue-Gree Cromis, and 1-gobby. The Warner Marine ecoBAK biopellets allow me to feed everything heavily which keeps evertying happy, happy, happy! I would highly recommend this product to anyone in this hobby who struggles with Nitrates & Phosphates. This product makes this hobby much more enjoyable and worry-free.

4 of 4 People found this review helpful, did you? Yes No

The absolute BEST pellets

Reviewers Rating Excellent!

Posted: 3/18/2013 from LA VERGNE, TN UNITED STATES
5.0 5
Experience Level: Expert

Comments: I have been using EcoBak for over 2 years on my system. They are by far the best thing I ever added to my tank. I have a SPS dominant tank but also have lots of ricordea and zoas and LPS. They all thrive because I am able to feed the tank large amounts and never have nutrient issues. There is no substitute, these pellets are by far superior than any other pellet on the market IMO. Water based extraction method as opposed to solvent based methods that are used by many other pellets available is where you will see the difference. No cloudiness, no clogging. I wont use anything else on my tank. So just click the purchase button now, you wont regret it.

7 of 7 People found this review helpful, did you? Yes No

If you want the best it here

Reviewers Rating Excellent!

Posted: 2/27/2013 from MOUNT HOLLY, NJ UNITED STATES
5.0 5
Experience Level: Expert

Comments: I have been using Warner Marine egoBAK Pellets for many years now and it is the best Bio Pellets on the market. I run 1000ml in my reactor at a time. In one year I will use 1000-1500ml. Ever since I been using egoBAK my nitrates have been 0. I test them with a Salient test kit.

8 of 8 People found this review helpful, did you? Yes No

Please make a selection 
Terms & Conditions | Privacy Policy © 1999-2015 All rights reserved.