How big should plants be when its worth starting to use co2 injection. Also could I mix floralicious gro and bloom additive fertilizers to my dyna gro nutrient solution. Im trying to see if its worth mixinf chemical and organic nutrients.

I start with CO² on day one of veg. Mixing those too? You don't need to floralicious is good by it's self. You are adding the same thing twice now if you want enhancers like Awesome Blossom or MOAB or any of the other flower boosters (and there are many) you should use more of a 3 part formula so you can vary the nutrient formula for each cycle to take advantage of everything a booster has to offer..

You can mix organic and non-organic just fine just make sure you are not mixing the same type of NPK nutrient.

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Peace
Zandor

If you go cheap you grow cheap. - Me