Don't get me wrong, I really like prime, and will continue to use it for my ten gallon. However, I like to have a separate bottle of conditioner for each tank, and even with the smallest available prime bottle, for my 2.5 gallon tank I did the math, and it would last me over six years. Now I know Prime does not have an expiration date, but I really don't want any consumable liquid chemical product for that long.... I like to replace my betta food every year as well, and I feel bad about wasting it.
So, is there any good complete water conditioner besides prime that is a little less concentrated? Maybe some type of "betta conditioner" or something that removes chloramine and temporarily detoxes ammonia as well as detoxes heavy metals. There has to be something out there. Thanks.