Day 24 of Flowering...First AeroGro

I am currently on day 24 of flowering and there are a ton of nice buds popping up and they are already looking very frosty around the leaves! I am using the GH 3 part flora series in a Rainforest aeroponics system. I am also using Kool Bloom and a little Superthrive. I have them under 400watt MH "Sunmaster" or something like that...plus about 70watts of supplemental florescent lightings.

I was wondering if anyone had any suggestions about things I could do at this stage to increase yield (besides C02 and an HPS, I know I know!)
 
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