Ive just got the one platty now and to be honest I wouldnt get any more. The one I have is a real narky fish. He bullied the other male and female plattys constantly which is probably why they died and he is still alive.
Now that he doesnt have any plattys to pester, he is spending his time chasing one of the male cherry barbs about the tank. I dont know if it is because of the red colour - perhaps he sees it as a threat
TROPICAL TANK-Elite Tank - 207litres
6 Harlequin Rasboras, 5 Emerald Eye Rasboras, 10 Cherry Barbs, 2 Bristlenose Plecs, 2 Panda Corys. 4 Dwarf Chain Loaches.
ViaAqua Tank AR620 97litres
1 red male betta, 1 BN