m0useanswered grow question a year ago It looks to be a PK booster of sorts. 0-6-5 with some added Mg and S.
I would not say this is even required. All these items are in grow/bloom/micro.
It has no N so its just starving the plant out and will make it change colours. In the future i would not buy this again, just use the normal feed at reduced rates. Cheeper does same thing.
Granted you have it now, so just follow the TA feeding guide.
https://www.terraaquatica.com/specific-fertilisers-nutritional-supplements/finalpart/
10 days in soilless, 10-20 days in soil with a EC of 2.0, seems like a lot to me. But thats what they suggest. Could always try one plant with it and one without and see what you like more. Given em both a proper cure.
Good Luck!