Howdy there
@Inganjawetrust The first thing to do is determine if you actually have nutrient lock out then go from there. If you are starting to see a rust-like Necrosis(dying) of the leaves on the larger fans leaves then this is the primary sign of PH fluctuations which can cause Nutrient lockout among other things. The simplest way to avoid this is to feed half as much twice as often - this lets you readjust the PH twice as often reducing the window change significantly. However if you are NOT experiencing the Necrosis as I mentioned above then the symptoms of nutrient lockout you are experiencing are not due to PH fluctuations, but rather a buildup of nutrients in your coco. EITHER WAY the best solution to a nutrient lockout is to flush your plant with pure water PH'ed at 5.8 for a few days. If you have access to a flushing additive these can assist in breaking down nutrient salt buildups to speed the flushing process along (However this is option to save time). Be sure to update us with the results
@Inganjawetrust! ๐