I'm wondering what kind of fish to add to my tank. All the ones i have are nocturnal or slow moving. Any thing I can add to spice it up in there. I'm new to big fish so I don't know all the names so pics would help. Tank is 150 Gallon with juv Florida gar, Black crappie, juv yellow perch, Bristlenose pleco, armored bichir, juv sun cat.