So I want a predator fish to keep my guppy population at bay. I don't want them to suffer.
What's one will hunt and kill only one guppy at a time , and will allow my guppies to breed?
I have a ten gallon.
Should I get another tank in addition and just use them as feeder fish?
Fucking really? You need to make another thread? Seriously, it wont last no matter what. If you had a 1,000 gallon tank with 500 guppies and you put one big cichlid in there, It MIGHT last a month. Thats totally not your case, and you having trouble keeping guppies alive as it is, so you shouldn't be getting any other fish anyways.
A fish like that doesn't exist. Fish will keep eating if they have the option to, because most of them are unable to actually tell when they're full.
Also if that's why your keeping fish, just stop. Or get a really big predator, and a really big tank, and feed feeder goldfish. Otherwise, seriously, fucking stop.
That's somewhat reasonable. But it's most likely not going to eat all of your guppies. Also remember getting any predator will require you to do more water changes if your using live foods
Heres what im doing. Im breeding guppys currently for food.
I have a guppy tank and two other tanks kne with some goldfish and another with a betta. When my population gets big ill give newborns to the betta and small ones to the gold fish hell i probally wont feed them to the betta on second thaught but still. Get somthing large ebouhh to eat then. I used to have a golden wonder that was a fucking alagator and wouldeat full size ones and not give a fuck. So yeah get a couple of those or somthimg in another tank and just live feed him