Yellow sponge?

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Gambit_Aces

Gambit_Aces

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Hey everyone, was cycling water in a couple of brute cans for my 135 gal reef. Finally got the rock in the tank and a portion of it setup.

I came across this yellow slimly to the touch portion of rock. Should I keep it or remove it from my tank?
20260915_212531_3E4CE20E-AF5C-4089-85E4-623410BD332E.png


20260915_212532_A42E950F-02D6-4D8F-B100-7461EF15102C.png


20260915_212532_81D107D7-32C2-4269-B1E0-FA6378488875.png
 

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