hey man you don't really need to change anything up when you add CO2 these will benefit just fine at the temperature you're at now, basically the temperature component is just another less precise way of estimating VPD which regulates the metabolism of the plant, higher metabolism is alright when you have CO2 because the plant can just do more work from the CO2, that's why it grows faster - i wouldnt tamper too much with your conditions because you're already optimal at 26°C ... CO2 will also do something interesting to your humidity, this is good for VPD, look up vapour pressure deficit if you havent heard of this yet. Good luck my friend, i use TNB myself, that's all you need in a 4x4 🚀
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