a whiff of grapeshot

i was worried that my new green mandarin was going to starve after it ate all the copepods off the glass and the rocks. so i came up with an idea to use an 3 way breeder left over from my freshwater days as a mini refugium in my 40g tank. i stuffed it with cheato and let it float, it worked pretty good im a tank my size. the copepods reproduce and spread throughout the tank and when i think the cheato is "low" on copepods, i switch it out with "fresh" cheato from my refugium.