Hi everybody, my name is Andrew and I just joined today because I have a serious problem with high nitrate levels in my 400 litre (about 90 gal I think) tank. I've had the tank for about 4 years and never experienced any problems until last week when I lost 15 fish (mainly small neons etc but also 3 clown loaches). The staff at my local garden centre tested the water and it was high in nitrates. I guess over the last 4 days I've changed out over 250litres. I keep testing the nitrate level and although it's coming down slowly I lost a silver shark tonight. The tank has plenty of bogwood (been in since the beginning so don't think that's the problem) and plenty of live plants and 2 air streams (one each side of the tank). Water temperature is 20 deg. SO all I have left now is 4 kissing gourami's, 3 golden gourami's, 1 sliver shark and a couple of small fish. The Garden Centre also sold me a bottle of Denitrol
Any suggestions welcome because I'm frightened I'm going to loose them all
Thanks
Andrew
Any suggestions welcome because I'm frightened I'm going to loose them all
Thanks
Andrew