Pods are not always good.
When there is an abundance of large amphipods, and scarce food, they will turn on zoas.
Before anyone tries to say they are harmless, do a search for yourself, many many threads on amphipods destroying corals when they don't have a readily available food source.
The addition of an amphipod predator will help reduce levels to sustainable.
I had to add a wrasse to help thin down the population as they were eating zoas, and pestering most lps and soft corals
Sent from my SM-G900T using Tapatalk