Posted: Sun Jun 19, 2016 8:53 pm Re: Water Levels
There are midland painted turtles in a large pond in my subdivision. The soil here is all clay, which tends to cause a higher Ph.
Of course, some leaves,may well as a few trees get in there. Those will tend to lower the Ph.
Our RES came from this pond. My tap water has a Ph around 7.6-7.8. The hardness is quite high. It's been years since I tested it, so I don't remember the number, but it was big.
So, my RES has done fine for years in that water with no issues other than a decided lack of shedding. I don't think that is due to the water.
If you look at the range for painted turtles, they have to be surviving in waters of various Ph levels and hardness. What I heard when I was asking the same questions was keeping both from fluctuating wildly is better than targeting a specific value. Our turtles aren't fish evolved to live in one localized area. Instead, both the painteds and the RES have evolved to live in a very widespread geographic area.
I'd say go with what you have. Besides, trying to fight the Ph or hardness of your tap water gets very expensive very quickly.
Tobi a RES born in 2012
1 dog, 1 teenager, 3 aquariums filled with fish, snails, shrimp and a bit of algae