"Fred" wrote in message
...
I have a Neon that seems to have a buoyancy problem - like it is always
going to float to the surface unless it continually swims downward...
sometimes, at the bottom of the tank, it has to go to grab food and it
rises
so quick you would think it was full of air. It appears happy
otherwise. Any
idea on this?

TIA, Fred

Try changing it's diet for a while. Frozen brine shrimp might be good.
It sinks (no air bubble entrapment), it's salty (good for them) and has
lots of fibre (cleans then out ;~) Otherwise, treat for swim bladder
disorder, but I usually try natural alternates first. Note that the
smaller the fish, the less time you usually have to try things, so ymmv.

NetMax