Hi I have had 7 sword tails for about 2 months so far bought from pets unlimited chain store . about 4 males and 3 females. They were in a 30 gallon with some tiger barbs but have since been moved to a 20 gallon to themselves. None of the females have shown any gravid spots or any sign of being pregnant . should I try to get a few more females to even it out ? And I think there are some platies on sale in my area would it be ok to go with some platies if there cheaper? Thank you . oh and could it be there still too young to breed ? Will upload a better picture after.
If you can provide some live baby brine shrimp or daphnia. Live foods get the fish conditioned and jump start the breeding behaviors. You can get any live food on Aquabid. With my large brooder Swords, 4"-5", I always keep 2-3 large female Endlers livebearers in the tank with them as a food supply. The Endlers can't interbreed with Swords or Platys and drop 20-40 fry like clock work each month. The Swords eat the fry as they are only 1 / 3 the size of Sword fry. This tends to make your Swords much less likely to eat their own fry as fry for food is always available and it is not like introducing a pinch of fish flakes.
If you mix the Swords and Platys they will interbreed and you will end up with muts. Just wanted to make sure you knew that.