"Marco Schwarz" wrote in message
...
Hi..

Cyling a tank with a few hardy fish and live plants, no
more than about 5" of fish in a 100 litre (25 USg = about
25" of fish) is usually safe.

Hmm.., what are hardy fish?



Fish that are resilient and can go through the stress of something like a
major cycle, without getting sick or dying?



Sean