I dont see any but prob. Its an intank refug suction cuped to the inside i keep the top of it over the water level. But there is 5 holes in the side i figured the pods wouldnt swim out or just some would enough to feed. Mandarin ive had for a year, Just put the refug in 4 days ago. The Madarin has been eating my frozen food. Yes ive seen him eat them.
thanks