Hey
@Canna_ballistic !
I got the same problem on my Green Gelato diary. It was EC problem, I was just checking the income EC.
Water your plants as you would usually do. You should get a 10%-20% outcome of water from each pot. Take one of that outcomes and check the EC. If the output EC is bigger than your income EC you have salt acumulation.
To help this, you should: OutputEC - InitialEC = Next watering EC. For example, you are watering them at 1.2EC and you get an outcome of 1.4EC. Then, 1.4-1.2 = 0.2 EC. This will be your next watering EC to prevent more salt acumulation.
You can also do a flush. But I would recommend first the upper method since it's more "natural".
Good luck!