pcfriedrich;2076066; said:you should do waterchanges more often. its the only to remove nitrates from the water (unless your tank is very heavily planted, anyway).
vacuum that gravel, too!
I have no real plants in there. I would but they eat them. I will do a nitrate test tomorrow just to be sure. Friend of mine has one I can go pick up.
I admit I do need to vacuum the gravel more often though. I need to find another tap adapter as mine cracked.