Looks Like Mini Starfish Stuck to Glass -

[dr exum]

Have you tested your water?

Yes

If yes, what is your ammonia?

0

If yes, what is your nitrite?

0

If yes, what is your nitrate?

20

If I did not test my water...

1. ...I recognize that I will likely be asked to do a test, and that water tests are critical for solving freshwater health problems.

Do you do water changes?

Yes

What percentage of water do you change?

51-60%

How frequently do you change your water?

Every week

If I do not change my water...

1. ...I recognize that I will likely be recommended to do a water change, and water changes are critical for preventing future freshwater health problems.

Anyone Seen these?

some sort of worm thing -

i’ve got about 6-12 -

 

[Fishnerd360]

I think those are hydra, I think they are harmless unless you have other micro creatures.

 

[twentyleagues]

Yeah I'd say it's a hydra. Not an issue for larger creatures. Baby shrimp or fish can be caught by them.

 

[dr exum]

thanks guys!

tried to google mini starfish stuck to aquarium and it lead me everywhere and nowhere ??