My 29 gallon tank is looking empty. Right now I only have 4 bleeding hearts and one algae eater. now I know i need to get more bleeding heart. I was thinking of getting 2 or 3 more to raise up the number from 4 to 6 or 7. But what else should could I put in my tank. I've never had any luck with liverbears. I've tried keeping swordtails, mollies and guppys with no luck. So i'd really like to keep away from liverbears. I'd really like a center peice fish but I don't know to get. I've had bolivian rams before and would love to get another bolivian ram but I can't seem to find any at my local pet stores.