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Showing results for tags 'biopellets'.
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Has there been and research done on the efficiency of any of the bacterial reactors that are currently being sold? We have bio-pellets, fluidized beds, kaldnes reactors, zeovit, etc. I'm looking for some sort of data that shows if you have "x" amount of nitrate and phosphate, that "y" amount of bio-material will reduce "x" amount of N/P given a certain amount of flow over a certain time period will reduce N/P levels to zero.
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So I'm running BP's on numerous maintenance tanks that are generally overfed and run typically high nitrates in the 75-150ppm range and have noticed some different things. The 500 uses a BRS dual media reactor with phosgard and BP's. About 3 cups of each and powered by a MJ1200 which results in a trickle coming out the other end. Nitrate was 75+ and after bring the reactors online, took nearly 4 months to drop the N to zero. The P dropped to zero after 6 months. The tank has large fish, large clams, and large SPS colonies. I have to feed it 14 times per day to keep everything fed. Weekly service 7% w/c. A 300 with 2) AVAST reactors- one with 2C phosban, the other with 4C BP. Nitrate was 100+.Powered by a Mag 7 and everything tumbles. Same story and same time frame. This tank has 34 fish and all corals placed in it wither away I believe due to N/P starvation. I took off the P reactor last week in hopes that it will return. Tank is fed 14x/day, twice weekly service with 8-16% w/c. All Euphylliads recede and die My own tank- 120g, w/c every now and then, overfed, strong current, high diversity, alternative filtration. constant turnaround of critters. N was 120+ and P was 1.0+. Corals always grow here. I put a large AVAST BP reactor with a kilo of BP's and a mag 7. BP's are in a huge mass at top of reactor and zero tumbling, lots of water flow thru reactor. I grew lots of cyano first 4 months and lots of algae on glass. Lazy maintenance man only scrapes glass evry now and then and it would often take an hour to scrub it all off with a soft sponge- very little scratches on my acrylic... Just this month, I noticed that the algae has disappeared and the water is noticeably clearer. I also noticed that the Euphyllias have been dying and more recently at an accelerated rate. Zero N or P. Am upping feeding to 5x day. I'm seeing that its very easy to starve certain corals in these conditions. In order to keep them and the fish happy and fed, the tank needs to be fed LOTS of food. I think this is a good thing as it will allow fishes to feed nearly constantly as they do in the wild. Thoughts?
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So I am already running biopellets in a BRS reactor and recently picked up a second BRS reactor from another WAMAS member to run carbon. I would like to run them in-line, and figure if they need different flow rates I can place the higher-flow unit first and then use a T-fitting with a ball valve to dump excess flow for the second. My question is, for such a configuration, which should come first, the carbon or biopellets? :why:Why that sequence, and what are the downsides if not followed? If one wanted to go one more step and run GFO as well, then what would the sequence be (and why)?
