I think we have some hair-splitting going on just what constitutes "white" and "natural". The substrate in the pic linked and the
This Forum is probably the best forum that i have ever used and i would just like to say how proud i am to be a member of this forum
I would not combine gourami (sedate fish) with active fish like rainbows.
I will track this down and post. I have a binder full of photocopied articles by Weitzman and his colleagues at the Smithsonian covering several species
A puzzle, the ammonia, but nevertheless, no issues I can see now.
Something else just occurred to me; do you have chloramine in the tap water,