Recently purchased 5 RBP. Right now, they're in a 10 gallon tank, and I'm really itching to get them out of there and into a communal. Right now, they're probably about 1" to 1 1/2" long. How much longer until you guys think I could put them in my communal containing a 6" JD, two 4" Mbunas, a 3" Mbuna, a 10" Florida Gar, and a 8" black spotted eel?