Hey Miwa I use to use clonex alot also but I did it using DWC. It does make the res yucky but C's right you dont need it. But if you still want to stick with clonex, they have clonex for hydro. Its a liquid pretty much does the same as gel. Other then that, your grow nutes will do fine for cuttings as well. Ive been reading up on my GH nutes I use which is 2 part floranova and come to find out that stuff has everything in it that is sold separately as additives with other companies. I use FF grow though in the res instead of my floranova though. I just read about it today but you can use floranova for cuttings etc. Also I have CaMg+ witch is also used for cuttings. I added all of that to my res and got good results. IDK know about how fast they root but once they root the root mass is huge with in weeks. So pretty much no need on spending more money just use what ya got
Oh and by using the gel, you dont have to put it in your res, On my newest cuttings I split the stem down the middle and dip it into the gel then stuck it in the res. I have a thing with letting the gel go to lol
Thats exactly what I do, cut the clone from the mother. Put into water until I'm ready to put it in the cloner. Then I cut the lowest branch, cut the stem up the middle and then dip in the gel clonex and into the EzCloner it goes. Do the same if it's going into a rapid rooter as well.