My own amended soil mix. Plan to water with ro water, recharge one water and fish shit the next water, sometimes both at the same time. During flower I will also start giving it incredible bulk and kelp it real. Will keep some soil in A Tupperware container on top of my tent to grow some mycorrhizal fungi and I will top dress it with that during the grow. No ph of water or testing pH of soil it is a big headache.