Yea the Scott booster is 7-55-10 so mixed at half strength should be 3.5-27.5-5 I tried one plant on last grow with mg bloom booster it was flop it gave a bunch of buds but they never got meaty had to dilute so much to not get nute burn that might as well just gave water it's something I've been experimenting on for a while now this time I have new soil mix I'm trying on half my plants it's manure, humus, mulch, lime, worm castings, and guano with small gardening shovel in bucket I put one scoop of each then 1/8 cup lime then repeated till full no mixing it has awesome drainage lots of O2 for roots and seems to be a great cheap mix