<span class="link_user">@Spratticus</span>, okok well I preamend the soil and topdress once in early veg, and once in early flower, both with ratios 2:1 in veg (444:284)and only 284 in flower. And only ever at or below recommended tbsp/gal of media. Funny enough I use the viparspectra 1500xs also, I feel you may be applying topdressings too often, forgive me if I am misreading. Gaia is slow release, more of a set it and forget it.