for what it's worth, fish tanks are the same way. i went from 1 to 12 in a matter of months. then i held my first frog. done!! the 60 gallon tank? it now houses 3 white's tree frogs. my 125 is currently in the process of becoming a south american paludarium that will house leucomelas. the 40 breeder is now reserved for fbt's, and i have a 8 gal that has pacman written all over it. long story short (too late) out of my 12 planted tanks, only the 75g remains, all others are slated for amphibian projects...LOL