just came across this thread.
we've put a spider in the tank before, bloddy thing skated on the top of the water and climbed out the cable hole in the lid. had to actually submerse the thing on the second go... sure the knifefish ate it
my dad says the fish like ant eggs, this true? we've got a colony outside...
we also stick the earthworms in alive. they're usually for the knifefish, and cos it's so docile, we have to guide the worm to it's mouth, and it just sucks them right up. i found a HUGE worm last week when gardening, must have been about a foot long, and so quite a lot thicker than the smaller ones. i so wanted to chuck it in the tank, but didn't want the knifefish to choke to death, lmao. my dad was like, chop it up, but i thought that a bit strange. now that i've read this thread, i might go worm hunting tomorrow, hehehe
we do find it hard to actually find worms in our garden though. we did that trick of pouring soapy water on the grass, and then tapping the grass, no worms appeared...
anyone got any tips for finding them? sometimes have to dig huge holes to find only a couple!