This is a stock photo. Each frag is roughly one inch in size. As with most L.P.S (Large Polyp Stony) Corals, Galaxia do better in areas of medium/low light combined with low flow. These corals are also able to tolerate higher levels of nitrate and phosphate compared to S.P.S. in some cases L.P.S corals do better in conditions with higher levels of nutrients. Tanks with low nutrients may require dosing of coral foods such as amino acids, rotifers, phyto plankton, and powdered coral foods. L.P.S with their larger mouth is also able to consume small pellets and small pieces of frozen food. Being a stony coral requires adequate levels of calcium, alkalinity, magnesium, and trace elements are necessary for proper health. Regular testing and dosing of levels are imperative for long-term success. Ideal Reef Parameters (L.P.S)Specific gravity: 1.023-1.025Calcium: 400-450 ppmAlkalinity: 8-11 DKHMagnesium: 1200-1400 ppmNitrate: 1-10 ppmPhosphate: 0.03-0.07 ppm Please read LIVESTOCK SHIPPING POLICY carefully before placing your order.