I know foam covers do not exist for the gyre (as of yet) but how do you guys keep nems with a gyre. mine likes to wander since its a new addition. i came home and looked at it. it let go of the rock it was holding onto and i watched as it floated to the end of my tank and back. in the last second i realized it will be sucked in and turned my gyre off as it was sucked in. no damage to the nem whatsoever, but what if i wasnt home... 
