xXAsianfiyaXx
Aquarium Advice Newbie
- Joined
- Jun 28, 2017
- Messages
- 7
What could be the cause of it?Looks like Aiptasia. A pest. Need to take care of them or they'll spread all over your LR. A syringe with lemon juice or hot water injected should kill them. Or looks like they are just on that one rock? Get rid of it.
What exactly could have cause these? I haven't added anything new in over a year.Hydroids, see how they're connected like a colony. Can you take that rock out and just scrub them off.