live rock hitchhiker question

[Hyprviperx]

So i just rearranged my rocks in the tank and noticed on one of the pieces of live rock there seems to be a lot of little bivalves growing, the largest is about the size of a nickle. theres probably about 15 total on the rock ranging in size. since they are growing they must be using calc/mag for there shells, better used for my corals. my question is should i remove this rock from the tank and get the bivalves off or should i leave them in. i don't want them to proliferate and waste my calc/mag.

 

[Hyprviperx]

no one??

 

[Reef UP]

I'd leave them maybe any chance of a pic?

 

[Hyprviperx]

yes as soon as i get home... im at work right now, leaving in about an hour

 

[_Alex_]

Sounds like sponges or barnicles maybe.

 

[Hyprviperx]

they are definitely bivalve/barnacles not sponges, but i will definitely get a pic up

 

[Hyprviperx]

you can see them in the first picture above the little feather duster and in the second picture on the left edge and a large one behind the war paint

 

[Reef Breeders Verified Sponsor]

Theyre pretty small, so they dont use much ca, I wouldnt worry about them.

 

[Hyprviperx]

i think i count 20 or so total, do you think that they will become a nuisance or over run my tank?