Co2 and balancing Nutrients

This is probably a bit of a redundant question, but I've recently started to look into Co2 set ups, and to put a long boring story short, I keep hearing a little of this and that about watching your nutrients when using Co2.

Now does this mean just be extra careful not to overfeed on anything (as much as possible of course), or does this mean adding Co2 into your environment also means you have to cut back on certain things throughout the growing phases?

Any input/patience greatly appreciated. Only on my 2nd flower so yes, miles and miles ahead of my abilities, but just trying to gain a good general knowledge on everything as I go so when the time does arise, I'm at least somewhat prepared. Thanks again

Where did you hear this if you don't mind me asking?

I run Co2 at 1500ppm from week one of flower all the way to harvest. That's supposed to be the max the plants can absorb.

I get fat, compact nugs, that barely shrink when they dry (when growing my favorite indicas). Definitely don't decrease nutes, if anything I'd think you'd go through more because of the increased amount of photosynthesis your plant would be doing.

I make my own organic soil with high quality locally sourced compost, perlite, and vermiculite and then amend with organic fertilizers and worm castings. Then I water with compost teas every other week, and when I'm not doing teas I go back in fourth with plain water and plain water with molasses.

Basically, my girls are not underfertilized lol. And they handle lots of Co2 just fine.