Can anyone please identify these for me

[brightonjg]

Can anyone please identify these And tell me what I need to do

 

[TangerineSpeedo]

looks like aptasia to me, or another type of hydroid... That's it, your life is over as you know it...

 

[vetteguy53081]

Can anyone please identify these And tell me what I need to do

Theyre hydroids. Direct water flow towards them- not at them and they will soon starve. They favor brine shrimp as a meal. Other option: Place a dab of Gel superglue from dollar store over each one and theyll starve and die off.

 

[Remy123]

Hydroids. Many ways to kill them before they spread. Check around the site and pick a method that you’re most comfortable with

 

[Mikedawg]

Or just enjoy them for awhile before/maybe they become a nuisance. They often go away on their own, especially if you aren't overfeeding.