Wow! GSP as we know is a hardy coral but this rock is totally covered and growing in .25 ammonia and 1.0 nitrites. Notice the white tips on the right side of the coral. This is a new 100 gallon build and all parameters are in check but the tank is 13 days into the cycle. This is roughly a 2.5 pound rock and was introduced to the tank under the same lighting schedule as the frag tank it came from.


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