Baby red belly piranha care?

Youcan go to walmart and get a starter kit, they're fairly cheap. They come with mostly everything, think you have to buy the heater. The kit is about 170 for a 55 gallon which isn't the size you need but it'll do good for know. You need at least a 75 gallon. For feeding them right now you can feed them cichlid flakes and blood worms. A package of worms cost about 5-6 bucks. Feeds them for a week or a little longer. Once they get big enough you can feed them feeder fish (rosy reds). Other animals you can put in with them, you can put almost anything in there that is the same size or bigger. If you have any other questions you can text me if you'd like 1-317-835-5784.