I have an oversized HOB skimmer rated for 100g. It is a 65g tank and pulls great skim. I have tried running a TON of GFO with no changes at all. The Vodka Carbon dosing along with macro suggestion really interests me though. That may be the ticket to throw off these favorable phyto conditions. I also have a large photosynthetic blue sponge I can throw in the mix to help uptake nutrients and filter feed. If nutrients get too low for it I can just put it back in my good tank. Ill also look for good media to put in my HOB suggestions welcome. My current filter media I put in there doesn't filter out any phyto at all.