We have a pond on the property here and about a month ago a friend was out here fishing and left me with about 2 1/2 dozen minnows. I wasn't planning to fish any for a while , so the minnows went into a plastic barrel that holds about 20 gallons. So I've been taking water out of the barrel to water seedlings and other stuff that isn't ready for fertilizer. The baby tomatoes really seem to like it! I guess it's probably a little like using fish emulsions but a lot weaker. I fill the barrel up every couple of days and then just dip some out when I need it. Kind of makes me want to put in a Koi pond so I'll have more "fish" water!