rokki wrote:
So still dont know if/what i did wrong but we wont
replace him (i'm a bit worried we may have overstocked - 6 fantails in
a 110 litre tank??) and i'll have to keep a close eye on the others.

Sorry to hear the little guy didn't make it. It's hard to say whether or
not he died ultimately from being in an overstocked tank, but it would
seem something caused an internal bacterial infection that kept him from
eating properly. 110 liters translates to 29.06 gallons, and the rule is
to have a ratio of 10 gallons per goldfish. Therefore, you should have
no more than 2 or maybe 3 fish in that tank at most. Otherwise their
immune systems can get stressed and become vulnerable to disease, or
suffer from stunted growth. Actually, lots of people break this rule and
their fish often live for years with no apparent ill effects, but
they're pushing their luck and the fish still probably dont live quite
as long as they could. If I were you, I would add an extra pump with an
air stone in the meantime, but go out and buy a larger tank (or an extra
tank) as soon as possible.

- Logic316



"My fellow Americans, I am pleased to tell you I just signed legislation
which outlaws the Soviet Union forever. The bombing begins in five minutes."
-- Ronald Reagan (Joking during a test before one of his radio
addresses. The KGB overheard it.)