An t-iasg
Aquarium Advice Addict
I'm wondering about the bottles used in DIY CO2. I have some empty bottled water bottles ready to make my yeast mixture in. I also have some of the Hagen containers on my other two tanks. The Hagen containers are dark gray - no light gets in. The water bottles would let light in to the yeast mixture. Does this matter? I know a lot of you guys use the water or pop bottles for your mixtures. Do you wrap anything around the bottles? I did some searching and I can't find anything that says the yeast must be kept in the dark.