Sump Critters

[ReefAir]

Hey I have these semi-translucent/white critters all in my sump, just wondering what they are & whether it's harmful or not

 

[ISpeakForTheSeas]

Looks like pineapple sponges to me - harmless filter feeders. They're common in newer tanks, typically booming in population and then dying off.

 

[Eagle_Steve]

Looks like pineapple sponges to me - harmless filter feeders. They're common in newer tanks, typically booming in population and then dying off.

I second this.

 

[Tired]

Agreed with all of the above.

 

[Fishkins88]

Hey I have these semi-translucent/white critters all in my sump, just wondering what they are & whether it's harmful or not

I have similar looking ones in a 4 month old tank. Fish and corals seem healthy, so I have not been worried about them.