years back i had a 18" ck and what i would do is buy about 30-40 feeders and then put them in my 10g tank that way i could regulate how much she ate... i would also feed her at night (mainly because i liked the sounds that would come out of my tank when she fed) and every once in a while i would give her baby nightcrawlers (that was fun to watch man she loved them worms... lol) there are alot of good ppl here that gave out some good info so don't know if this will help you out but thought i would give you some info about how i took care of mine...