Go fishless!!!! Just ask the LFS for a bit of the junk (skimmate) out of their skimmer and dump it in your tank. What better than the crap that occurs naturally in the tank??
lol....i had one guy ask that once when i worked in the aquarium store..i knew why he waned it but i messed with him...im like "why u want it" he explained it to me and then i told him it would be $30...u shoulda see the look on his face...but yea anyway it works really well.