Lately ive noticed my starry blenny with a huge belly well before the normal feeding time. Come to find out its eating the semi coarse sand and itll poop it out. I feed the tank once a day with a sheet of nori and frozen mysis/brine and the blenny is right along side the other fish getting its fair share of both. I could feed twice a day but dont want to. It kind of freaks me out that its eating the sand and poopin chunks out (ouch!). Dont want it to choke or get constipated. Is this normal? Heres a pic of my sand to give you a visual of how coarse it is.