Swordtail Not Eating

[MJC8719]

I have a tank with two male neon swordtails in it and one platy. One of the swordtails and the platy are eating the flakes I feed them just fine, but I never see the other swordtail eat. This has been going on for about a week now. I also noticed that his top and bottom fins are usually clamped, but he is swimming normaly around the tank. Any idea of what to do cause he is looking a lot smaller than the other swordtail and they were about the same size when i bought them

thanks

[Nuriel]

sounds like hes stressed, my green male swordtail is behaving the same way. He used to be the king of the tank untill I introduced some loaches this summer- now he sticks to the top and barely notices the female. I noticed a difference when I put my growing rainbow shark in the 29 gal, now the swordtail in the 20 acts much more relaxed. try some live foods. I feed mine mealworms that i drop in with a sissors, cutting them in two as they drop in. The livebearers love them, as well as all my other fish....