I ended up with five feeder guppies left over after my attempts to get the baby blacknecks eating. I didn't want to just kill them outright (we live by gladiator rules here; if it survives feeding time or escapes, it lives. Till now that only applied to crickets that made their way to the front door). Anyway, I now have somewhere near fifty guppies.

Just wondering if anyone knew a humane method of culling the excess fry? I'd like to keep my little tank of guppies, just because they're so easy to take care of and handy in case of babies not wanting to eat.

Also, after a few generations, do parasites stop being a concern? Or if I freeze them for an extended period? I'd hate to waste so many fry since I know Turtle and my smaller blackneck would love them f/t, but if there's a parasite risk I wouldn't risk it.