No idea

Bluemonk · 2026-09-30T17:34:51-0400

Spotted this today as i fed the tank and was just doing my daily "whats new today" look over. And noticed one of my rock flowers had moved.figured maybe he wasnt like the amount of light he was getting but i was concerned because it was overlapping my other nem. Then i koticed this where the moved nem usually sits. Never seen till today. Havent added anything. All the corals are loving life. Not due for weekly water change till Saturday. Anyone got any ideas?

56longroof · 2026-09-30T17:38:05-0400

It might be a type of sponge but its hard to tell with the lighting.

saltwaterfish.com · 2026-09-30T20:39:07-0400

2nd vote for sponge but if you could get a picture with a flashlight when the main lights are off it would be easier to see the details and confirm.

Bluemonk · 2026-09-30T21:08:51-0400

saltwaterfish.com said:
2nd vote for sponge but if you could get a picture with a flashlight when the main lights are off it would be easier to see the details and confirm.

Will try and get a better pic tomorrow. Its kinda tucked in there.

Bluemonk · 2026-10-01T06:01:42-0400

Better pics.

Teddy99 · 2026-10-01T06:32:14-0400

looks like a sponge I had once.

EnterName · 2026-10-01T07:10:32-0400

Sponges (e.g. Sycon sp. can look similar, but usually grows isolated not in colonies and shorter, so the genus might not match). They can differ a bit in shape (e.g. Sycon scaldiense is thinner than the one in my thread). If you have access to a microscope we may actually be able to identify it.

The only other option would be tunicates, but those don't have these little "crowns" (hairs sticking out of the tube opening) afaik.