For those who are new~
Seriously, after seeing most units anywhere from 150-300$ that are 0ppm, I found this sucker
0PPM Portable 50GPD Reverse Osmosis RO+DI Water Filter - eBay (item 170457482067 end time Mar-17-10 19:47:51 PDT)
Totally works great, if you goto the guys store, he's got a 100gpd for 68.
Quite the bargain..
Just gotta get a tds
meter though, heard the 20$ HM tds
works good though.. so ya 88$ is still better than any other prices I've seen for a RO
capable of 0ppm output...
I'm happy with mine, and I do believe the fish are too