if they are a desireable or rare species then take them to a LFS they usualy will take them from you, people come into my work and i take them all the time and have no problem selling them for next to nothing. keep the babys coming if you can do this and someone wants them. but i would say you could also get a clown loach. i keep a discus tank for display with my boss and the loaches always eat the discus eggs. i dont know how big your tank it but if it is big enough throw a loach in there. thats always helps us.