I found four Aiptasia in my 90 :(

[PjFish]

There’s some beautiful file fish especially fantail (Pervagor spilosoma)

 

[dswong01]

Club has a manjano wand to zap them suckers

 

[tribbitt]

The aiptasia probably came from your source of chaetomorpha. They’re transparent and blend right in, and most people don’t care if it grows in their nutrient export.

Now that they’re in your tank it’s gonna be tough to eradicate. But as others said it’s not the end of the world, there’s many biological controls.

Just use this as a lesson to pay more attention to adding things in the future