[AquaticLife] Oscar Fish
Your tank is too small for one oscar, never mind more than one. The cloudiness of the eyes is probably caused by a high level of some form of nitrogen. You do not include any water quality measurements, so this is just a best guess.
First thing to do is to do at least 10-25% water changes daily. Once you have taken care of that today, go out and get a larger tank for your oscars. You are going to need a tank that will provide about (quickly doing the conversion) 190 liters per oscar. Get it set up and get it cycled. Before moving the fish over to it. You can do a fishless cycle using plain ammonia. If you seed the tank with filter media from your current filter placed in the new filter and use a few handfuls of substrate from your current tank to try to give the cycle a kick start and reduce the time needed for the cycle.
\Steve//
Category: Philippines Internet Koi Society
