The thing I liked the most about the Bergia is they are an in tank solution to the aptasia and when done correctly they dont need any special qt setup you just release them in a spot at night in the rockwork where they can get ahead of predators and build their population. I was able to have it work with three wrasses and a good population of pods and bristleworms. Mine ended up laying egg clusters all over, even in my overflow boxes. Good luck with the buy guys.