First ever wilma grow

[Matthew420]

Hi guys so battling on still have ph issues watering 4 times a day for 15 mins but seem a bit dry . Im thinking of upping it to 6 a day . Currently feeding 1.0 ec but plants seem a bit pale and a few spots possibly cal mag so have upped that to . Thinking of possibly going coco for the next grow. Question can i use my hydro ionic nutes or will i need to buy coco nutes? Wasnt sure as it a recirc if its hydro i would use or not