I have central air and its always at that temp all year round.
you can use Turface that's the same stuff! It does keep PH down, but not low enough for Taiwans...you have to layer Peat moss between. I just did this in my newly setup plant tank and the PH is now below 6, KH 1-2
perfect for Taiwans to breed in...so I will be moving a few of them over to this tank, see if I can't get them to breed.
Heck everyone else is doing it...even my big Apple Snails...just laid a huge amount of eggs in my 125 gallon goldfish tank! Has to be 4 inch long.