well this is highly fertilised soil and in my experience (which isnt much) I have used similar soil and have had sighs of salt build up or too much nutes and a flush worked a treat , the plant went a little yellow but recovered within a couple of days , also can a flush hurt? if it doesnt need it will it do any harm?you dont need to flush imo ... flushing is for removing excessive nutes in the soil ... you dont have any ... just feed with 1/3 - 1/2 recommended feeding nutes and build it up to full nutes over 3-4 waterings
Well not to be a dick, but why would you flush if it doesn't need it?so i can flush even though they are still wet from the last water and dont need it?