Where's That Test Kit Opinion Thread?

[waterdrop]

I know I read a thread somewhere on TFF where a number of experienced members gave their opinions on which test kits for each type of test had worked best for them. I've done a number of searches and can't find it again. It wasn't the poll. It might not have mentioned test kits in the topic title. Anybody remember where this was?

I got curious to find it again after I had trouble finding any liquid hardness test kits in my LFSs. Yesterday I managed to pick up a Tetratest KH one and then I wondered how people felt it compared to others. I -know- that thread is out there some where...

Thanks, ~~waterdrop~~