My current set-up:
125 gal Stock Tank (no substrate)
Penn-Plex Cascade 1500 filter
Sicce 80 gal filter
2 water heaters
1 Mercury Vapor blub
1 Sicce water jet (for aeration and fun)
Occupancy:
2 female RES
My question is will this tank be big enough for the future and what improvements can I make now.
Also, one of mine, Blair, is a bit bigger than the other, and tends to be a bit of a bully. I sometimes find her chasing Picasso around the tank, and she has bit her on a number of occasions. However, this behavior is not constant, and they will go for days, sometimes weeks, and get along with no problems. Should I separate them now just to be safe?

