Veg + Bloom Experience

Just wondering if anyone uses any supplements with the veg bloom line up. Not sure of the chemical composition so don't wont to add anything which it already has. I don't have access to 'Life' so I'm using Ecothrive Byosis as a replacement. I've always used Si but haven't just incase.

cheers

I just started playing with it in veg.. DWC.. so far no additives plants doing fine after 4 weeks of use. PH raises a little after mixing then settles down to about 5.0 then set it at 6.0 and it holds .tried it for leaving camping for a week so the ph holding was main reason. They have additives from them on there feed chart but it seems they have enough cal mag in the mix. I'd like more N tbh for veg. Time will tell if I keep useing it .