Cleaning Equipment??
 

What do you use to clean your SW equipment?

I picked up some stuff second hand and the stuff that was taken out of the sump is covered in stubborn little white speckles.

It is not salt creep but being a FW guy I have no idea what this is or how to remove it.

Any help would be greatly appreciated. Thx.

I'd try vinegar.

If you can tip the tank, try letting it pool at full strength. If not, you could possibly fill the tank with a water/vinegar solution (cosco has bulk vinegar for cheap).

I think they are a species of vermitid snail but I'm not 100% positive (I have the exact same thing), I don't think a cleaning solution will help as they have grown onto your glass. Not something I would be obliged to remove from the tank as they are not detrimental to anythings health.

I had the same kind of thing, didn't seem to bother anything but once the equipment was out of water and dried out they just scraped off

If the tank is empty and dry I just use a single edged razor blade to clean them off. If the sump is already in use I would just leave them.