It seems that after several months as a new budding aquarist, lessons are being learnt and regrets are being had...
I wasn't convinced but my wife wanted to add some Platys to our already busy community tank. I caved in, against my better judgement. After discussion with the LFS I agreed to have 4 males, as I just did not want the females giving birth all the time, as I have no interest in breeding. Everything was fine at first....
To explain, I have 2 red balloon platys, and 2 tuxedo platys (well I believe thats what they are) one red one and one orange and black each paired off together and where happy for ages.. until one of the tuxedo (orange) ones became much bigger than the others. And he started constantly harassing and showing aggression towards the other non paired red balloon. This carried on for a while until I mentioned it to the LFS who kindly said bring it back we'll find a home for it.. which I did.
So now the other tuxedo is doing exactly the same behaviour to the red ballon, and sometimes the one it was paired with too. its hard to tell.
I have also noticed them doing this flashing off of plants behaviour too, Byron has suggested this could be to do with parasites. or water quality. I have the right type of water for livebearers, ph 8.2 GH 16. but I do have high Nitrates, I get 40ppm right out of my tap. I dose with prime at water changes, and have a heavily planted tank but alas the nitrates remain high. I did notice some of my danios doing this flashing also, but only a few times. the rest of the fish seem ok.
first video is of the platys behaviour, are they trying to mate? or is this just straight out aggression or what?
second video is more of the same, but also I managed to capture some of the flashing against leaves behaviour.
I know its a long story, but I would appreciate any info, or suggestions etc.
I am considering asking the LFS to rehouse the other tuxedo, because if this continues I am sure the red balloon will not be long for this world......
video 1 http://youtu.be/koVeOfdF3Nc
video 2 http://youtu.be/VlV9fcfFp38