Thanks again Johan

I think what I need to do is to read up a little & think about the best way to sort this.

Usually its a simple case of overfeeding if the nitrates are too high.

I'm gonna do a couple of water tests over the next week, read up on a few websites that you have posted. See what else i can find out & then I'll report back.

Thanks again for your advice.

Thanks to everyone who has contributed.

Regards

E

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3ft X 2ft Tank & 2 Small Quarantene Tanks

1 pearl Gourami 1 Sword tail
4 Upside down Catfish 2 Flying Foxes
1 Angel 4 Corys
1 Horse Faced Loach 1 Rainbow Fish
2 Congo Tetra's 3 Dwarf Suckerfish
3 Lemon tetra's 3 Red Phantom Tetra's
I Bristlenose 4 BN Fry
Plants

3 Lilly's 3 Onion bulbs
3 various other plants