Old rock new growth

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elysics

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I am ramping up carbon and silica dosing and sponges are exploding all over the tank, however i have only seen more of the same sponges, not have entirely new kinds appear after almost 2 years.

Except for these, i see two so far about an inch apart. They are very soft, prodding them with a soft silicon tube bends them as if theres nothing there. The red part ontop is unrelated i think, probably cyano.

New sponge?Tunicate? Something else?
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Look like tunicate.
 

IF YOU HAD TO TAKE A REEFING EXAM, WOULD YOU PASS?

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  • Not yet, but I have one that I want to buy in mind!

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  • No.

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