I've been using biolife since sept. A little bottle goes a long way. I have
3 tanks, 20g,55g, and a 75g and the bottle lasted me nearly a month

Wendell and Jack at Ocean Aquatics sell Nanochloropsis, it's a super thick stuff, I used to feed just a few drops to my 90 gallon daily. I found it pretty reasonably priced, especially when you consider it's thick like ketchup.
If you want to really save some money, get some phytoplankton, rotifers and some Guillards from Reef Crew, you can feed rotifers, and green water to your tank.

Doug

Your idea is great Doug, but Im lazy.... I like the little pump bottle in the freezer

I know the feeling, trying to renovate the fishroom/basement/computer room/wifes hobby room etc etc... Trying to move my 90 gallon, see if I've got room for a 6 foot tank or just a 5 foot, trying to set up a rotifer hatching station, a green water station, a bbs station... and Oh yeah, gotta keep the laundry going, etc...

Doug

oops my above post should read, a bottle lasts nearly 2 months :redface: