Well... my mother brought home 3 comet (they were labeled comets anyways) goldfish today. She said she wanted them in the pond. Of course they add bleach in the pond, I had to flip it over and scrub it all out with vinegar and rinse a billion times. Once I got that done, I built a filter with the pump. Basically attached the output of the pump to a Tupperware , with filterfloss and carbon/zeolite mix. Then attached the hose to the output of the Tupperware. Duct taped it a billion times and bam, a filter. I was pretty proud of myself. Added some sand and a couple river rocks. Floated the fish, added them. I have soilent green in my freezer and i assume I can feed them that. I used math outside of school for the first time in forever and I calculated its about 51-55 gallons. Should I do once weekly water changes? How often should I feed them? Thanks I'm starting to think they are commons. Maybe a hybrid?