breeding fish for fish food
ok, so is it in poor taste to breed some really prolific livebearer for the sole purpose of feeding the fry to my killies?
the killies i have that will only accept live foods already get a steady diet of blackworms, tubifex, grindal worms, and baby brine shrimp so i'm not really worried about their nutrition. i just kind of like the idea of having another kind of system to fuss over and maintain (any reason for yet another tank).
would fry even be nutritious? does anyone else do this or is this just outright blasphemy?
any suggestions for most productive/nutritious live biomass per time unit species?