I just picked up two new tanks on craigslist.com. I got a 10 gallon and a 20 gallon to go along with my 29 gallon, 2.5 gallon, and my small hex betta tank. Right now I have absolutely no idea want I would like to do with these new tanks. Maybe make one for a breeding tank. I have had mollies and enjoyed when they bred. I also have always wanted a Crayfish. I am kind of on a tight budget seeing that I am broke, so does anyone have any suggestions on what would be some good, cheap things to do with these tanks? I know I have plenty of time to think about it since the have to cycle, but I would enjoy input from everyone, thanks.