Originally Posted by Sniperhank
I wouldn't try to keep a difficult critter like a flame scallop of any type along with a coco worm. They will be consuming the same food source out of a small water column. The bought foods for this are all phosphates and can easily nuke the tank parameter wise and can kill such sensitive creatures. This ended up being the downfall of the coco worm in my tank when I had to work 6 days a week for several months, conditions worsened and it died off approaching it's second year in my tank.
I have since replaced it with a flame scallop, non-electric variety sadly.
Thats why I suggested the live phytoplankton culture. Unlike the bottled variety, it can be dosed without worrying about the phosphates and nitrites if it were dead. It can be dosed at will without affecting water parameters.