i am glad you are going to try it i switched over to prime about ten years ago. not only is it the best price for the most treatment, but i most importantly feel it is the best quality conditioner.i hope your experience is as well as mine has been.
Keeps my sensitive fish (like rays) happy, so I'm sold on it. A little bit really does go a long way. It will be difficult to keep yourself from dumping extra in, but it's really not necessary lol.
I couldn't get prime and petsmart isn't very easy to deal with in canada as they won't ship canadian products to canada?!?!? So I got some Laguna water prep for ponds as it treats 1270 gallons for 240ml. Not as much as prime but small buisnesses cant sell something when 250ml lasts a year or two. Especially when petsmart sells it at half the price.
Sopport your LFS