Originally Posted by Keedee
I have a ten gallon tank with 3 sword-tails, 1 platy and a red cherry shrimp. When I initially bought the swordtails I thought I got two females and one male to have a good balance but as it turns out one of the 'females' was just a late blooming male I think. So now I have two males and one female (the platy is also female).
Now I'm not sure what to do since the larger of the two male swords (the one I thought was female) is always chasing after the smaller one. I know you're not supposed to have 2 males so I'm not sure what to do.
You have a small tank with Livebearers that will reproduce with their own and the Platy. These fish are fast breeders and in a small tank, there's no room for the females to hide or avoid the males. I would make plans for a larger tank. 30 gallons would be about right and in the mean time, drop some individual stems of some floating plants like Anacharis and Hornwort into the tank. These may provide a little hiding space for the females. Otherwise, the males will chase them to exhaustion.
Keep the water clean by changing half of it every three days or so and keep the food to a minimum so the water stays a bit cleaner.