i had no idea what valonia was when i first went to buy liverock to add to an established tank we bought. i thought it looked cool and i actually picked the pieces that had the most bubble algae on it! luckily for us it hasnt spread, the bubble have gotten bigger but we havent seen any news ones. our emerald crab hasnt done anything about it, its little and hangs out on one side of the tank and i dont think hes even seen the rock with the valonia on it yet.
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