"McEve" wrote in message
...

"Sue" wrote in message
...
snip
My Zebras are now in a tank wich they only share with a baby ancistrus,
for
keeping algae at bay. I have 8 in a 120 liter, and are a bit worried
about
that not being enough for establishing a good balance in the tank,
bacteria
wise.

The bacterial balance you need is to match the fish load. Biological
capability will level to their waste production. You cannot have too
small a fish-load.

As for dither, if you are breeding Zebras, I would resist adding
anything, for a variety of reasons.
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