Help - Volitan Lionfish - Cloudy Eye

[dnsfpl]

did some research on common causes of cloudy eye:

stress - unlikely as it is the only fish in the tank

physical damage - as mention above, it is the only fish in tank, unlikely due to fight nor rub against rock

bacterial infection - possible cause, but what could have cause it?

nutritional deficiency - daily feeding, with 1 cube size of EITHER frozen market prawn(50%) OR mysis(20%) OR silverside(20%)
2-3 live mollies OR ghost shrimp occasionally(10%)
% in () shows the estimate frequency

poor water quality - water parameter are as follows
ammonia 0, nitrite 0, nitrate 30-40ppm
pH 8.2, temperature 25-27 degree celsius

what should i do now?

thank in advance for your help

 

[Recty]

How often do you do water changes? Something like this that seems to be happening for no reason is often solved by doing a good sized water changed. There might be something "off" in the water that we dont commonly test for but is affecting the fish.

A pretty big water changed followed up by another one a couple days later could do him wonders.

 

[dnsfpl]

i do 10% monthly

will do a 20% tmr

thanks

 

[dnsfpl]

tues - 20% water change
wed - 5 min FW dip
thu - consume 2 mollies

took a pix of it
looks like it is infected with ich now
hope it can pull through