I have this Acan Colony that has been in quarantine and will be going in my display next week. Question is the narrow end of the colony is not flat. Bends upwards about 3/4 inch from the bottom of tank. I want to place it on my sand bed so should I place a small flat rock under the raised portion or will it over time grow and bend downwards? Any recommendations on placement would be appreciated. Photo was taken a few weeks ago 5 minutes after being dipped and put into quarantine so it was a little upset. When puffed up all gaps between heads are completely filled in.

