My 28 gallon cube is pretty much SPS
and zoas. I have probably 20+ zoa species and many were bought as small groups (1-5 polyps) because of their rarity and price. While some are growing like weeds (ironically, both that I bought as single polyps have exploded in population), a few of the variaties haven't propogated at all. They appear healthy, but after over a month still no sign of growth. Do zoas react positively to additional feedings and what to feed? Marine snow, plankton, etc. Thanks.