Thank you guys!!
Oughtsix, I'm very happy to hear that! I've had adfs years ago on this water and they gave me hundreds of little tadpoles, but I treated the water with a generic dechlorinator/heavy metal removal and paid much less attention to water parameters then...
My Gh measurement is in ppm. So, dividing by 17.9, that means it would be 16 dGh right out of the tap and 8 dGh after the driftwood buffers it, correct? (Yes, it's stayed steady at 150ppm over the past few days!)
Thank you for the formula, wastewater! Your reply was very helpful!!
The kinds of fish I am looking at right now are corys, tetras of some kind (black neon or ember, most likely), a betta, and maybe platies at some point. Would they all be okay with my parameters? Cichlids are very pretty, but I've already gotten a betta and can't mix the two!
I do measure Kh, and it is at ~40 ppm from what I can tell.
I would love to have shrimp and snails, which is the main reason I'm concerned about the copper.... but it's a bit of a risk anyway with the betta, where the shrimp are concerned...