No way is that too big for a forever home. May be a bit big now, but with clutter could be ok. I personally would wait a bit to move him though. Tyson is about to hit 600 grams and I am almost done customizing his new/forever enclosure, which has almost the same footprint as the one you're looking at. He will be moving from his 20 gallon to the new enclosure within a few weeks.