Betta With "dot" On Eye? What Is It?

[Channti]

Did a major overhaul on my betta tank today. Hornwort was polluting my water big time, so I pulled it all out, fixed the water stats (which have been up and down for the past month), and made everything good-as-new. Noticed my crowntail Betta has a white "dot" on the center of his right eye. He only has it on the one eye, so I'm sure this is isn't normal. the dot is about the size of the point on a pin, dead center on his eye.

He's in a 5 gallon tank, divided. Heated, filtered, with sand substrate and live plants (hygrophila polysperma, cryptocoryne wendtii "red")

What is this? What kind of treatment is necessary? Is it contagious? (Will the betta on the other side of the divider get it from the water?

 

[loraxchick]

how long have you had him? and when did you notice it?
i have a PK with the same "symptom". always been there since ive had him. never gets worse or better, so i suspect its a congenital issue. doesnt seem to bother him in the slightest. hes still a nut
just keep a watch on him. and have some epsom salt handy in case its bacterial and leads to popeye. but i think its likely just a 'defect'.
cheers

 

[Channti]

I've had him since March. I've never noticed it before, but it's quite likely that it's been there the whole time.

He has been hiding more, but that could be because I completely changed his environment (total rearrangement of plants, and I removed all his favourite hornwort due to pollution issues, the only thing left in place was his terra cotta pot caves.)

His vision doesn't seem to be impaired, as he still manages to chase his food with his usual activity levels.

 

[Channti]

Just got home after being away for a couple days. The dot is missing now. No idea what it was, but whatever it was, it appears to have ran it's course. I was probably worrying for nothing.! I plan to keep an eye on him fo the next week or so, just to ensure that he's not showing any more symptoms.

Thanks for the help!.

 

[loraxchick]

probably an injury of some sort. glad it has cleared.
cheers