Are you having any nutrient problems at all? If your having problems lowering nitrates then bio pellets can be very beneficial you just really need to research them good because they can work to good at times.Also bio pellets will allow you to feed your livestock alot more which is the main reason I added pellets to my system.And you shouldnt need to run any gfo if your running pellets
i am haveing more then normal amount of alge growth and i have to do some testing on my phosphate level but i think that is whats casing it but i have seen it going down agen in the last couple of days