I'm wondering if the snot isn't actually helping the plants a little. Between h2o2 doses [3-4 days], the ph drifts up a little.
With 5.8 being optimal, and looking at the nutrient absorb-ability ph chart, some nutes are barley available at 5.8 on either side of the spectrum. My logic is that by setting it lower, say 5.6-5.7, and then letting it drift up [thanks to the slime] to 5.9-6.0 before adding ph down again, the plants should theoretically be getting more than just trace elements of the nutrients that are barely absorbable with a constant ph of 5.8.