I recently purchased 3 ornates from a LFS. There are 2 females (ones 14 inches long and the other is 16.5) and 1 male (13 in) I have them housed in a 125 gallon tank with a Rena XPS 3 and a UV sterilizer for filtration. Is the tank size large enough? So far I have been feeding them frozen shrimp, nightcrawlers and massivore pellets. Is that diet varied enough or should I throw some fish fillets in there as well? (no, not all at the same time) Also is there anything I can do to keep the massivore pellets from stinking up my tank?