grow bloom micro + sensi cal grow?

hey guys, im really new to this so i got alot of questions.... anyways. im using AN grow bloom micro and got AN sensi cal grow. Can i use these together or should i not use grow and replace it with sensi cal grow? Or use them together... maybe 50% strength each?? doesnt say anything about it on the bottle or their website. Does anybody know what i should do? and im using R/O water.

How old are your plants? If they are seedlings start at a 20-25% mix and slowly work your way up. Using a 50% mix from the start could burn out your little seedlings.

They are a month old now. ive been using 50% strength. seems ok.... but now ive got some issues.. hopefully not related... my leaves are really limp and droopy.. swolen looking. and theyve got some purple stems... need calmag maybe... watering too often maybe.. im using really pourous soil.. HP mix. lots of drainage.. im not too sure... i think ill try letting them dry out and see if that helps.. any suggestions