Sorry for delay. Did the entire reply and lost it. I have 5 tanks. They are just plain glass basic fish type tanks. I do not regulate the temperature in them. The room they are in varies year round between 65 and 72 degrees in winter and 70 and 75 degrees in summer, lower temps at night. I have glass stones on the bottoms of the tanks that range from approximately 3/4" to 1 1/2' in size. No sand. When I clean the tanks, I empty the dirty water, rinse and clean everything inside (plastic plants and glass stones), scrub the sides and bottom with a scrubby and rinse. I use only water when I clean. Then I replace everything and refill adding Right Start to the new water.

I do have two tanks in my basement. I don't know the gallon amounts, but one is 30"X13"X13" and the other is 36"X12 1/2"X17". If I could use either of these tanks and combine all the frogs, perhaps this would be better. I am on a fixed income. I can not afford much, but maybe if I don't need to buy a tank, I can try to create a set up that would be better. Can anyone give me an idea what would be necessary for 6 frogs?