yup, I, and many others, use ProTekt as a ph up. Its both Ph up and has a little nute in it (3% soluble potash) But it is good for stressed plants, helps strengthen the plant to heat, drought, pest, diseases, cold etc...... The bottle says 1/2-1tsp a gallon, but since you are using it as a ph up, start with 1/4tsp, check ph, and go up from there if needed. I noticed that different companies nutrients vary on how much ph adjustment is needed to make the ph rise and fall (if that makes sense) i.e full General Organics lineup takes just a pinch, while the Floranova may take a little more to get the ph where you want it.
No Bioroot in flower, check out the GO feeding chart. As for the CalMag, if using RO water, use more than 1/2tsp. I sometimes use 2tsp a gal depending on what nutes im using. The Floranova should have calmag in it, but if using RO water, i'd use 1 tsp per gal. I noticed with my water a tsp adds roughly 125ppm. So if your water is near 0ppm like mine then it takes a bit more. I use it every feeding. By using the Tiger Bloom and Floranova, you were pretty much giving the plant a double dose of base flower nutrients. I like the Floranova since its just one bottle. Im running it n my soil because i like how the ph is 6.3 after i mix compared to 5.3 with GO and 4.8 with H&G. Therefore i dont need alot of ph up to make it rise. IMO just finish with the Floranova Bloom and add a little calmag. You can use additives also. Im going to use Floranova Bloom, A little calmag, for when i flower my soil plants. Also have some extra additives im going to there that i got from an indoor garden expo. For now just K.I.S.S. There are people just running the Floranova Bloom Lucas formula for the entire grow.
look into Dolomite Lime for your next grow if still in soil. Itll be a buffer and help keep your ph around 7. Also look into M.O.A.B. by Mad Farmer or any bloom booster.