Green water again!!

run your diatom.

check your nitrates and do more water changes.

i still really don't get it. i have a 55g that gets partial or indirect sunlight, and the light has been on for well over a month now, and i never get green water. (if i shut the light off the catfish eat my convict fry and i wanted this batch to last.) all i do is water changes. i do have a bio-wheel (emp400) and i also have a fluval 404 and an aquaclear300 on the tank atm. all i do is water changes........ :confused:

i even overfeed.

is the tank properly cycled? maybe the algae is interrupting it somehow. i know this sounds weird, but i was able to make 1 of my tanks go green once and it was after leaving the lights on forever and throwing the cycle out of whack. the plants actually take up ammonia easier than nitrate, so maybe that's why you're seeing it on the bio-wheels. maybe put new ones on after the diatom and re-cycle the tank.

as a shot in the dark, maybe the algae is doing the cycle NOT the bacteria.

edit: and the emp400 cartridges only get changed when they fall apart or become uncleanable. i reuse mine as long as i can, i just wash them in high-pressure tap water.
 
I would stop the DuckWeed feedings for now....
 
Duckweed is probably not the problem. I have duckweed on almost all of my tanks--I add it to tanks that are showing a bit more algae than I like. Duckweed pulls nitrates out quicker than anything else, since CO2 is never a limiting factor for it like it can be for aquatic plants.

If anything, I would see about setting up some sort of safe zone where the duckweed can thrive and not be eaten--it will likely help reduce the nutrients in the water column.
 
Originally posted by OrionGirl
Duckweed is probably not the problem. ... ...safe zone where the duckweed can thrive and not be eaten--it will likely help reduce the nutrients in the water column.
I suppose stopping the duckweed feedings might help...
 
AquariaCentral.com