AboutRon Coleman Expertise I am an expert on cichlid fishes, particularly New World cichlids. My broader expertise includes the behavior, ecology and reproduction of fishes in general. (I am NOT an expert on Goldfish). Please do not use abbreviations, such as "my GT has a swollen eye" because I don't know what a "GT" is. The more clearly you can explain your question, the better chance I have of understanding what it is that you seek. I keep fishes both as a scientist and as a hobbyist and I currently maintain about 140 aquariums.
Experience I am an Assistant Professor at the California State University, Sacramento in the Department of Biological Sciences, and I run a website, called the Cichlid Research Home Page . I also write for many popular aquarist magazines, and I am editor of Cichlid News magazine. I am a scientist and I spend my time teaching fish biology, ecology, behavior and evolution and doing research on the reproductive biology of fishes, particularly cichlids. I do research in the laboratory and in Costa Rica, Nicaragua and Mexico. My main interest is understanding the evolution of parental care in fishes. I am interested in encouraging greater public awareness, understanding and participation in science.
Publications Cichlid News, Tropical Fish Hobbyist, Freshwater and Marine Aquarium, Science, Behavioural Ecology and Sociobiology, Copeia, Canadian Journal of Zoology, Trends in Ecology and Evolution, AUK, Environmental Biology of Fishes
Question hi my name is kassidy, me and my dad have a oscar,an opaco,and another fish i forget what its called,but my oscar has developed huge eyes that he didnt have last weekend they look like marbles and they are a light creamy colored and his eyes with the substance is almost bigger then him,we clean it 1 every week and my apaco and the other fish dont seem to be getting all the fungess that my oscar seems to be getting.. if you know anything please write me back as soon as possible i need to know whats wrong with my fish!!!!
Answer Hi Kassidy,
That symptom is called pop-eye and it can be caused by many things. Two of the most common are stress and poor water quality. When you clean the tank, do you change some of the water? You should be changing 25% of the water once a week, every week.
Also, be sure that you never use any soap or other cleaner in the fish tank.
-- Ron
rcoleman@cichlidresearch.com
Cichlid Research Home Page <http://cichlidresearch.com>
