Originally Posted by Mazdamarc
Fish tanks has been cloudy for 3wks. Water tested the numbers are nitrate 0, nitrite .5, pH 6.2 and ammonia 0. The tank has been set up for 7mo with no problem. It is freshwater and i haven't added any new fish. Also i haven't lost no fish except for a snail. i have did 2 25% and 2 10% water changes over the pass 3wks. The water is a milky white, the employees at petsmart said it was a bacterial bloom so i vacuumed out tank not the entire tank i didnt vacuum the whole tank just half. I changed the filter 3days after i did the first water change and i did the second 10% water change 5days after i changed the filters. The filters have been in for 10days and i checked them today and the water is not flowing through the filter because they are clogged up very bad with a black gunk like stuff the filter and biological filter both are clogged so the water is overflowing between the filter and not going through the filter. I cleaned the filters a little so the water would flow through the filter but that only lasted for 2days and they was clogged again i cleaned it with the water from the water change. The filter is a aqua-tech 30-60. So what is the black stuff because there is a lot of it?? and what could be causing the milky water?? thanks i also bought the aqua clear power filter 40-70 as reviews show its the best HOB filter.
Could very well be a bacteria bloom which will go away with time. If this tank is holding the fish listed under your aquariums,, then That could be reason your filter material is becoming clogged so quickly. These are messy fish and the filter (aquatech 30/60)isn't gonna cut it in 50 gallon tank with One Oscar,Two Bala Sharks,Two jack Dempsey's, Seven Tiger Barbs, and five silver dollars. You say you have not lost any fish and this is a sign that you are keeping up with the water quality but as these fish continue to grow,, so too will the amount of waste they create.
Would run the Aquaclear filter on the tank Along with the aquatech if you aren't, And I would be performing twice weekly water changes of 40 to 50 percent along with cleaning one of the filters and alternate weekly ,cleaning the filters.If the fish listed under your aquariums are in this tank, I am doubtful of the zero nitrate readings.
Frequent cleaning of the filter material in old aquarium water as you are doing, and water changes as described,will help clear the tank and keep filters operating at optimum level which is critical if the fishes health is of primary concern.
Would also take care not to overfeed the fish for this too can help create cloudy water condition you describe. If gravel vaccuming is not performed each week, particularly with the fishes mentioned ,then disturbing it after a long period of time will also contribute to cloudy water condition by stirring up that which has been in the substrate (bits of food,Poop) and could also lead to sudden ammonia and or nitrites spike.
Best to keep the feedings light and substrate vaccumed on regular basis (weekly) along with large weekly water changes.