Weird Tentacle/Spider/Hydra looking thing on Glass?

[JoeinLA]

We're seeing a few of these on our glass, and wondering if what they are and whether we should be concerned...?

 

[EeyoreIsMySpiritAnimal]

Pics?

 

[JoeinLA]

uploaded!

 

[EeyoreIsMySpiritAnimal]

How old is your tank?

 

[JoeinLA]

2.5 months.

 

[EeyoreIsMySpiritAnimal]

Looks like hydroids. Usually just a temporary thing.

 

[JoeinLA]

Cool. Was afraid it was aptasia or some other bad thing.

 

[damsels are not mean]

nah those are harmless and go away eventually anyways

 

[Green_Lantern]

Cool. Was afraid it was aptasia or some other bad thing.

You are definitely ok. Aptiasia is very specific looking. Once you see it you know it.