Ich is caused by a parasite which causes fish to develop white spots and although the whole fish will not turn white areas where there are no white spots may turn pale in color. My Oscar fish is turning pale I did a water change yesterday and now my oscar fish is looking pale.

Another possibility may be that your oscar is suffering from hith or hole in the head disease which can cause white discoloration on the head.

Oscar fish 35 gallons with 1 blood parrot 6 in 1 oscar 4.5 in 3 angels and a pleco.. I ve had them for a month now and this is the 1st time it happened.. It usually stays in one place but after that water changed it seemed like it was exploring the tank. Fish turning very pale. Thread starter joehays start date may 10 2012 forums. General aquaria discussion forum. Freshwater diseases and health issues. 1 of 2 go to page. Jun 22 2009 58 0 0 west chester pa. May 10 2012 1 my parents had a 55 gallon tank set up and running for 2 But i think your point is that oscar looks pale.

This could be because he s feeling sick. The substrate and background in the tank are white or another light color fish will show much darker colors when their surroundings are dark-colored . He is frightened by something in the tank or something visible from the tank. Hi all i have something nasty killing my fish. First one of my sterbai cories turned almost completely white as though it lost all of the color from it s scales after a day it died. I thought it was a fluke but then an angel got it a died and now a second angel is near-death. What is cloudy eye in fish The structure of a fish s eyeball is similar to that of humans. There is an outer layer called a cornea which protects the inner structure of the eye from damage. Below the cornea is the iris which is used to adjust the light coming into the eyes. A good example would be when a fish keeper buys a new fish from the fish store where nitrate levels are kept low.

They then take the fish home and put it in their own aquarium where nitrate levels are very high. Nitrate shock can kill fish in a matter of 24 hours. Nitrate shock can also occur in a mature aquarium. Why do oscar fish change colors If they are not provided with quality water well maintained ph and temperature the color of your fish maybe turn into pale or light colors. The nature of water and ph must be alkaline. The percentage of ammonia must be zero. Nitrites and nitrates must be 20ppm. The water changes must be done