I have this 35g tank with 6 neons, 6 guppies, 6 endlers, 3 zebra loaches, 1 weather loach, 1 pleco, 2 cory catfish, 5 mollies, 2 platys, 1 ADF and some shrimp. I was wondering if I could add RTS, would they eat my neons and guppies? Also would it pick on other fish? If I cant add them, what other fish should I buy?