I wasn't sure where to put this post, but being that my plants are growing in SIPS, I decided here would be ok. So, I am on week 5 of vegging these 4 Black Garlic, 2 in each of City Pickers SIP. I am trying to prepare for flower and am also needing to amend as like I said am on week 5 and should amend according to directions approximately once per month. I mixed up a Coots mix type soil to begin with. I intended on amending just prior to flipping to flower with 50% Gaia Green 4-4-4 all purpose, and 50% Gaia Green 2-8-4 Power Bloom at recommended 15ml per 4L (1 tbsp per gallon) of soil.
What I would like to do because top watering in a SIP isn't really the best, is to brew a ewc, compost, and perhaps kelp meal tea, and water my dry amendments in with the tea so I am only watering from the top once. I am not sure if there is any issue with doing it this way, and so I am posing this question to the people who grow in SIPS.