Yer if it's money issues you have , you saying that Discus cost about $46 each , you could get a few ( 4-6 ) for just one tank let them pair up , breed , ect and then sell the baby Discus on . Get abit of money out of your first pairs young and then save up more , then stock the other tanks with ever new Discus , Angel fish or even some other type of fish .
And if you want you could divide maybe 1 or 2 of the tanks up into to smaller ones and then raise the very small young fry up in them and then you dont have to go out and buy even more tanks and Save alittle money on that side of things to go towards new fish to Breed , Food , Ect .
Whats the plains on heating and filtertion of the tanks ?