My gf is getting me a pair of hogg islands in the next couple of days. I set up a 15 gallon tank with newspaper, waterdish also a hide! The temps are at 90 and fall to 80 at night. The rh is at 50 to 60 regularly. Does this sound ok, also how long do they have to stay in the 15 gallon till I have to put them in there 100 gallon thats were thell stay when there full grown.