Teach me the A-Z of dosing

[jason604]

I have a Lot more sps now than a few weeks ago and I'm noticing one of my Acro colony is starting to turn pale so I check kh and it was at 6. I Normally have it around 7 but it's dropping so fast and I don't add kh buffer nor check parameters often enough so I'm thinking about getting one of those fancy auto dosers. I initially was gonna go with ca reactors but I heard its much harder to dial In and take more effort to operate. I pretty much jack about auto dosers so can a pro kindly lead me into the correct path? What's the best bang for Ur buck doser. What exactly do I need to buy in total. How do I know how much to dose? I heard about doser horror stories that fail n cause total tank crashes. How do u make sure this never happens?