Now that the usually pushy Danio is hiding and acting slower than usual (if he dies that would be 3 dead Danios in 4 weeks) I've decided to switch to RO
water to gradually bring (and keep) my PH down. It's at 8.2 usually. I discovered I can get RO
water at my grocery store for $.40 a gallon so it's way more affordable that I thought.
I know I don't want to change the PH too quickly. So I bought 5 gallons of water today, and have been adding a gallon of RO
water to my 30 gallon tank every several hours. So far theres been no change in my PH at all. My tap water has a huge buffering capacity, it's very hard. Should I continue in this way over the next several days or go slower or use another method?
When I finally get my PH below 8, for my regular water changes, should I mix part RO
and part tap water (treated with prime, obviously) to put minerals back into the RO
or should I use all RO
and a mineral additive?
Also the RO
measured a PH 7.6 after sitting for 6 hours - is that normal, I would have expected it to be a bit closer to 7....