Mix Cal-Mag and Silica and/or FFGB?

So currently i'm using water - water - feed every 2 days with 1L of water. On each water days i use Bloom City Cal-Mag and Silica separately, i.e. cal-mag+water on one day, silica+water on the other. So you saying i can mix the silica and cal-mag with 2L of water together and just use that for my two water days instead? EC shouldn't be an issue as the bloom city stuff not as concentrated as the FF and the plants seem to be responding well to it. That would save me some time, lol. I had severe noob problems with overwatering and overfeeding so i'm trying to get this grow as spot-on as possible so i can attempt more advanced techniques next time around as i get this basics sorted out.

I always mix silica first into my water, then cal mag, then other nutes. You should be fine doing it that way.

You can mix FFGB with cal-mag. BUT you wouldn't want to because FFGB has calcium and magnesium already in it and could cause a excess amount. Look at the back of the FFGB bottle and you will see this. Bloom City Silic does not have any cal-mag in it so you would have no issues adding it. Happy Growing