I wrote a long post about the complexity of water hardness measurement, and the huge number of terms and types, but decided not to bore people with it (you’re welcome). So, the short version—
My questions:
Do fish distinguish between temporary hardness vs permanent hardness, or just total hardness? And should I worry about total alkalinity? Or can I just use TDS and ignore the hardness numbers?
My questions:
Do fish distinguish between temporary hardness vs permanent hardness, or just total hardness? And should I worry about total alkalinity? Or can I just use TDS and ignore the hardness numbers?