Posted: Sat May 31, 2008 12:53 am
A 75 gal will be a very good size for them for a good few years. Right now, I have my male in a 75 gal, and it's just right for him. Eventually, you will have to upgrade tanks, but the good news is if you separate them, you can most likely just keep the 75 gal setup for one of them, and only need to buy another, say, 75 gal (depending as you know on size and sex). (if you end up keeping them both, of course).
I don't know what "pictus cats or weather loaches" are, but anything you put in the turtle tank will likely end up as food. Keep that in mind, since you don't want to put anything poisonous or spikey, or expensive in the tank.
They sure are rewarding pets, and really fun to watch. If they get along, then it's also cool to watch them interact.
That's the other thing - if you keep both of them together, you'll have to keep an eye on them for aggression. When they're little, they can't do too much damage, but as they grow, they can cause serious harm to each other, and you'll need to separate them permanently.
Ralpheal, "The 'L' is silent."
Frankie, "Young at heart."