A link before anyone asks what I'm asking about..
http://www.junglelabs.com/pages/details.ph...html?item=NJ169

I know this isn't like worming a dog or horse; no real way to control the amount any fish gets per feeding........but are there any guidelines on how much per gal or how much per fish per gallon of water? Or, does it just not matter??

Melanippe, found your question while going through some older posts...
I bought the Pepso food for my fish, and when I opened it and saw those tiny little dust particles they call pellets I was sure my fish won't even see that, and sure enough, most of it ended up in the filter.
So, I found another way to feed it to them - I put a few tsps in their gel food once a month!
It doesn't say exactly how much per gallon or fish, it just says to feed it for 3 days and then return to regular diet. And you can feed it once a week on a regular basis.