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Thank youLooks like sponges. Pretty standard for any tank - and they're beneficial/harmless.
These are tubes and may be tube worms. Sponge is usually filamentous. Please post pic under white light and closer if possible
Clearest I can get..These are tubes and may be tube worms. Sponge is usually filamentous. Please post pic under white light and closer if possible
Unusual so fast but appears to be poriferan sponge. You can pull each one with a pick type tool. While harmless can increase in numbers and overtake rockClearest I can get..
Interesting.. never heard of them!Unusual so fast but appears to be poriferan sponge. You can pull each one with a pick type tool. While harmless can increase in numbers and overtake rock