tbrown
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Yeah, I only added about 2-4 oz. I'm not sure about it being skimmed out as I don't run a skimmer, but definitely it could be pulled out mechanically?The bulk of that will be skimmed out of the water column before it can be utilized by the system. Another consideration would be any unused fertilizer left in the culture spiking your nutrients. Four ounces at 30ml per liquid ounce is roughly 120ml, and about a right-sized dose, IMO. I think that 8 - 16 oz. Is pretty high for your sized system. Just my 2 cents. Others with more experience may have different opinions.