Tried the DIY Co2 with yeast. The smell of beer aggravated my allergies. Thinking of Co2 tabs with a Co2 set up. The tank will not have fish so don't have to worry about ph swing.
I would not recommend the Red Sea CO2 set then.
I would also not use CO2 tabs, not because of the pH swings, but because of the swings in CO2 concentration. Trying to maintain a steady CO2 concentration is quite important, and CO2 tabs will not allow this.