Zoa critters ? Help identify

[nanobambam]

Hi, could someone please help and identify the critters on my zoa garden? If and how to remedy if needed ? Its a 20gallon with 2 clownfish a cleaner shrimp, sea urchin and snails running for a year only a couple of pieces of zoa’s in the tank
Thanks for watching and thinking along
Sorry for the blueish light didn’t want to change the light causing stress for the clownfish

Link to video youtube

Thanks

 

[Crabs McJones]

at the very end of the video I can see what looks to be an amphipod. if that's what you're seeing they're a great hitchhiker

 

[nanobambam]

Thanks, they are good in your aquarium i believe ?

 

[Crabs McJones]

Thanks, they are good in your aquarium i believe ?

yes