Help with 29 gallon tank stocking?

Waay overstocked just like Amanda said. I would suggest doing what she says in her post. And your not going to know when your fish get too big for their tank because keeping them in such a small tank to begin with will just stunt their growth and theyll end up dying very small. They will grow to the size of tank theyre in and thats it. Especially since you have so many fish in there. Definately return or sell all the fish that will grow too big for your tank.