I have resorted to picking out the best of the bunch and selling the others. Most of mine are not large colonies yet though so your in a bit of a pickle. I would pick your least favorite colony and sell it as a whole to a happy reefer or frag the whole thing up and bring it to the frag and swap and have lots of happy reefers.
That way its a win/win as you have lots of extra room (for now) and you also made the world a happier place for your fellow reefers.
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