eco23
Aquarium Advice Addict
In that case I'd try to find a brand which is actual spring water and try to avoid the RO purified water (like Dasani and Aquafina that I mentioned). They should have more dissolved solids and hopefully a higher pH. I know Deer Park and Evian are true spring water, I'm sure there's a ton of others...just try to find the source listed on the bottle.