Hello I started using maxibloom trying the kiss method with tap water around 280 ppm. I am measuring 7 gr/gal of maxibloom and 5 ml of cal mag also adding 3 ml/ silica and 1ml/gal of root excel. I went to my res today and noticed everything had a real orange almost rust looking film over everything that was kind of salty. I have a pump at the bottom of the res doing a water fall loop with the water so it can mix and adding air stones. Any help would be awesome thanks!