Would a very small hippo tang be ok in a 40 gallon system for a few months until I get the big tank going? I know it will outgrow the tank quickly and do not plan this to be permanent home. Tank mates will be yellow watchman, yellow tail damsel, few percula clown, orchid dotty back, and I think the flasher wrasse is still there but haven't saw him in few weeks (he likes to hide)). Also a pajama cardinal.