IMO, well even if you had a high pod count, the fish would still wipe it out sooner or later, resulting that you HAVE to feed it. Many people say put on in a established tank 6-12 month tank for mandrains but they will still wipe it out. Do you have refuge, thats where pods can grow safetly
i used to have a HUGE pod population, it just disapeared in 3 days... just dont depend on pods, and depend on feeding, also have to watch out with over feeding...