- Joined
- Aug 19, 2018
- Messages
- 20
- Reaction score
- 10
My tank is about a month old and still cycling, but these popped up yesterday. What are they?
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Aren't hydroids a type of pest jellyfish?Appear to be hydroids.
Indeed they are! This type attaches to the wall.Aren't hydroids a type of pest jellyfish?
These things just kind of stick to the wall and don't move at all