Hi,
I have a 36gal tank currently stocked with:
6 choprae danios
3 Harlequin rasboras
1 fancy guppy
3 dwarf chain loaches
A few random snails
Java fern
Mopani wood
My water was tested yesterday and read:
Ammonia: 0
Nitrate: 0
Nitrite: 0
pH: 7.0
The trouble started last week, I had...