you are in soil, so when top 1" is dry, irrigate. learning the weight at which this occurs is useful familiarity too. Can simply give a little gently lift to guage weight and decide. Weight works better due to differences in evaporation at surface.. e.g. if a fan is nearby that pot is going to dry out up top earlier but may reatain more weight underneath etc etc... So, learn the weight of a dry pot.
Runoff... you want enough to ensure you didn't leave a dry pocket of soil. If that becomes a pattern you can get odd concentrations on edges of that dry pocket if it continues to happen over time. some dry back occurs, and anyunused solute remains behind... some minimal water with more solutes comes in but does not fully saturate area, so you are adding more nutes to previous nutes -- potentially in a cycle that *can become a problem, but not always. This is what trips ppl up .. the "it worked last time" nonsense argument.
So, get some runoff, but doens't have to be extravagent like for soilless grows. Let that water runoff down drain or dump it outside etc... don't let the pot sit in its own piss and shit. The concentrations levels are not the same, it's another 'maybe' leads to a problem so don't do it.. .cause eventually it will even if not the first few times....
Pretty simple... learn weight of dry pot... irrigate with a little runoff to ensure total saturation ech time.
If they droop a lot, add more perlite or similar to next batch of soil. a 50-50 mix in soil is good ballpark to be in. (50% perlite or hydroton or vermiculite etc.. you got options)
