Help with digitate hydroid problem

[NIVLEM09]

those white bobbing strings i had them in my tank and i just used a pair of long tweezers to manually remove them.

[Reef Puffer]

They will thin themselves out. Other than torching the rock tho, i havnt found a way to completely rid my tank. Give it a few months and it should mostly go away. Is this a new tank? About 1 year to 1 and a half? Good luck with this!