david1991 Posted December 8, 2009 Report Share Posted December 8, 2009 noticed rendahl catfish came out of hidey hole to feed with a fat white belly, only about 10cm and its very lazy, put in with 2 other around the same size can somebody help me with whats going on? and how to sex them? do they lay eggs or do they give birth to live fry. need to know ASAP cheers David Link to comment Share on other sites More sharing options...
david1991 Posted December 8, 2009 Author Report Share Posted December 8, 2009 pic Link to comment Share on other sites More sharing options...
Linoleum Posted December 25, 2009 Report Share Posted December 25, 2009 the usually get big fat bellies mine all have i thinki its healthy. Im not sure how to sex them but im pretty sure they are egg layers and the male will build a nest in the gravel, they have to be pretty big to breed around a foot so im not sure how succesful breeding in the aquarium will be. Link to comment Share on other sites More sharing options...
batters Posted December 31, 2009 Report Share Posted December 31, 2009 hey champ all the native eels tails will eat and eat till they look like that its not nesecery unhealthy. you may be right and its full of eggs tho. i assume the male will build a nest to breed but i have a good book i'll look up later for you. its easy to tell sexes apart the male has a long cylinder opening and the females is a bit shorter and more triangle. its a bit hard to spot with just one but once you get a male and female you can spot the difference. definetly egg layers and they shouldnt be hard to breed given enough space. cheers mick Link to comment Share on other sites More sharing options...
david1991 Posted February 4, 2010 Author Report Share Posted February 4, 2010 thanks mick Link to comment Share on other sites More sharing options...
frinkie Posted February 4, 2010 Report Share Posted February 4, 2010 agree with all the above, a few years ago when they used to be in the local creek,t. tandanus would all breed around november, they would make nests in the river bed a good foot in diameter. I know its not the same species, but i'd imagine it would be the same as fairly closely related. That dorsal spine had some nasty toxin's in it though, got done by one that was no bigger than 5cm once, whole arm went numb except for the tip of my finger which hurt like hell for a few hours. wouldn't want to think what a fully grown one could do Link to comment Share on other sites More sharing options...
