i have a 16 y/o res (franklin) and a 1 1/ 2 y/o res (harry) i just put them in the same tank together , and they are best friends , what would be a good size tank for them? right now there in a 60 gal, franklin is 6 inc and harry is 3
2 RES
franklin-13yrs old, 5 1/2 inc long
harriet-1 month- 1.5 inc long