Algae is an asshole. Thought things were going really well... and then found a bit of algae in the rockwool.... No biggie I figure. Wrong. Left it one night, and today (Sunday) open the jar to find algae in all the roots. Not cool. Well, I needed to swap the nutrients anyway, and was going to do a major bonsai pruning... so why not also wash everything, plant included, in mild hydrogen peroxide solution? Sure, THAT's fun.
Made the decision to swap Hydroguard for H2O2 as well, since the water is room temp (21-22 C) and the H2O2 supposedly helps prevent algae.... and keeps away root rot even in higher solution temperatures. Oh, and H2O2 is also seemingly a buffer... making getting the pH right in that small jar strange - needed WAY more pH down than without the hydrogen peroxide.
Fingers crossed that the major life disturbances will help manage the algae and not just put the nails in the coffin.