Logically, I think it would depend on the fish in the aquarium and the amount of small pods available? Pods are a much better marine larval food source than brine shrimp, according to their fatty acid profile and the nutritional needs of marine fish in general. I read a report of a Banggai project done in Hawaii, where they had a small breeding population that that they tried out in a small pond, 3000 gallons I think. Anyway more came out than went in, no other predators, they were never fed, they survived on pods, max population at one time was unknown but something like 10 went in and 67 came out, in about one year.