We have a 70 gallon aquarium housing our newest family members, we have a pair of w/c garters found by my oldest boy! He is anxious to catch more, more more!!!! Reminds me of me at that age. (well even at my age now, lol)
Anywho the twins are about 18", and growing. How many more would be comfortable in the tank. Its 4' x 18" X 18" with several hides and decent size water dish for soaking. I know I could put several more in at this size, but I dont want to overcrowd the tank in 2 years.