Humm Yeah...in the reef mat...

[Av8tor2]

LOL made me jump. The reef mat gave notice that the roll had ended. Went in to cut the filter and was rolling it up on the take up roll...

What the heck are these?? And should I be worried?

 

[MnFish1]

LOL made me jump. The reef mat gave notice that the roll had ended. Went in to cut the filter and was rolling it up on the take up roll...

What the heck are these?? And should I be worried?

The picture is a little poor - looks like a type of shrimp/pod - how big are they? (hard to tell from the picture) - either way if they are in your roller mat, they are probably also in your rock/tank

 

[Reefkeepers Archive]

Amphipod, beneficial detritus eaters, wrasses love to snack on them :)

 

[piranhaman00]

They are pods

 

[Av8tor2]

The picture is a little poor - looks like a type of shrimp/pod - how big are they? (hard to tell from the picture) - either way if they are in your roller mat, they are probably also in your rock/tank

The largest was about 3/4 of an inch.

Video of them

 

[kevgib67]

Amphipods 100%

 

[Sisterlimonpot]

They are pods

To be more precise, amphipods.

 

[MnFish1]

Some more information for the OP: https://entnemdept.ufl.edu/creature...hipods range from 5,seen in other colors also.