You could get some sort of large sword plant. Most should get big enough to fill most of the gap.
You could also just put a big piece of wood in the corner.
Wow. Fish for the hobby must be pretty dam cheap over there.
Selling such a fish for food would not be very expensive at all... so the price difference can't be that much different.
Not sure what colour.
Is it unpainted?
It looks it. Maybe brown?
Black may be too strong, same with white.
Maybe a dull white? Just to get rid of the unpainted look. :lol:
Why keep fish when you can keep the child in there?
If he's naughty, you can put him in there on display when mates come around.
Also, I think it needs a paint.
:oops: whoops. Assumed when you said "other one" that you only had 2. :lol:
Don't think loss of colour is too much of an issue, unless there is no colour at all.
having only 2 tetra wont help them colour up.
Also, they lose pretty much all their colour when its dark. What time were you looking at them? Was it hiding somewhere.
Loss of colour on its own isn't really a problem.
If its behavior has changed as well, then its time to think about what to do.
HTH
Started with about 1/3 covered.
Tonight its at about 2/3.
Will take out half of that tomorrow when I WC.
Plants are still quite new and growing their roots so there hasn't been too much grow yet.
My other tank was completely covered and the plants weren't doing too well, so I took most of it out and they seem to be doing better now. HTH
Thanks for comments guys!
Really don't think the pH is killing the fish.
Most fish would handle a ph of 6 without any problems. Test your water for all parameters before you go changing your pH.
It will just stress your fish more, and possibly kill off any weak ones.
It is not a true biotope at all. :lol:
Amazon biotope I would expect to see dirty dirty water, and some driftwood with very low light.
No idea.
I guess any dried leave should be safe. Unless the plant is poisonous.
Should be fine.
Make sure they handle the night though. Co2 should be turned off, not sure if its the same with DIY, but it can't hurt.
pH change wont affect them too much, although you would want to watch for stress/gasping at surface for air.
It would be MUCH easier to read/decipher you posts if you used some simple punctuation.
What I understand is you have:
Aquatic mix
The black gravel on top
hang on filter now replaced by internal
plants
co2.
Correct?
Anything else? Driftwood?
Any fish?