Ok just to point out... in a 29 gallon... 3 frogs would be the MAX you should have... rule of thumb... 1 frog per 10 gallons MAX. Also if you are wanting tree frogs Id be really careful with that much water... they can be prone to drowning if they cant find a qiuck exit... they are not swimmers like usual frogs but like to soak. I keep my water level below my frogs head just to be safe.