Hi, I have recently set up a 10 gallon nano and it has been up for 23 days now. It has cycled, ammonia, nitrites are non-existent and the nitrates were almost undetectable. My pH levels seem low 7.8-8.0. Does it take a little while for pH to get up? I don't have any fish yet. Just a snail and some hermits and there doing great. I use R/O water. Any help would be great thanks.