Affiliate Marketing Secrets

I recently started a tank a couple weeks ago and got 7 fish to house in it. 2 dalmation mollys, 1 balloon molly, 1 albino pleco, 1 albino cory catfish, 1 gold dojo loach, and 1 silver dollar fish. When I got them I was told the mollys are schoolers (so I got 3) but the woman said nothing on the silver dollar, which I’ve read now is also a schooler. He’s well tempered and mellow, and similarly sized to the mollys, and seems to get along well with the others. Will he integrate into their schooling niche or should I be concerned that I need more?