OK, about the cories. I can set them up in a 10 gallon. That is all there is space for anywhere in this house and it is a stretch. We are talking on top of my husband's bureau in the bedroom. If I got 3 more would they be ok in a 10 gallon schooling around? I plan on using water from the established tank but will have to use the 3 cories to cycle a new filter. Maybe I should just bring them back? Seriously will do whatever you guys say here. I hope the petstore will refund/store credit me for them if I take them back.

Thanks,
Carole