We are pretty sure that if corals had faces that they would be smiling at you after they see you dump some of Coral blend from Rod’s Food. This was designed for corals and those that want to feed their coral propagation tanks. Also it’s great for nano tanks that small amounts of fish in them. The actual particle size is much smaller then the orginal Rod’s Food blend. Gone too are the greens and shrimpe exoskeletons that corals can not benefit from. Avaiable now at your favorite LFS or online retailer. Retail is about $10.