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About Ron Coleman
(Top Expert on this page)

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 ask me questions about why your goldfish are sick -- they are almost always sick due to the way that they are sold). Also, 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. Thanks.

Experience
I teach at the California State University, Sacramento in the Department of Biological Sciences, and I run a website, called the Cichlid Research Home Page <http://cichlidresearch.com>. 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.<BR><BR><B>Organizations belong to</b><BR>American Cichlid Association, Pacific Coast Cichlid Association, American Society of Ichthyologists and Herpetologists, etc<BR><BR><B>Publications</b><BR>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<BR><BR><B>Education/Credentials</b><BR>PhD (Toronto, 1993) MSc (Simon Fraser, 1986) BSc (British Columbia, 1983)<BR>
   

You are here:  Experts > Animals/Pets > Pet Fish > Fish

SubjectDate AskedExpert

Red Cap Oranda5/10/2008Tom Lee
  Q: Last week I bought a Black Moor and a Red Cap Oranda fish. I had been looking after them well and ...
  A: When a tank is first set-up it goes through a period where it becomes extremely toxic to fish. Hardy ...
training my baby oscars5/10/2008Ron Coleman
  Q: i have jus got a tank and stand all set up and ready to house two oscars. i am in the process of ...
  A: For a pair of oscars, you should be looking at about 75 gallons or so to keep them happy. Of course, ...
Flowerhorn does not eat anything5/10/2008Tom Lee
  Q: I have a flower horn fish which is not having food for past one week and it is discharging whitish ...
  A: Loss of appetite and loss of colour leads me to believe that your fish is suffering from Fish ...
Why do fish bite other fish tails5/10/2008Ron Coleman
  Q: I hve a sea angle and a gold fish in a tank. The sea angle always bite the gold fish tails? Even the ...
  A: Sorry but I don't know what a sea angle is. Do you mean an angel fish? Fish are often ...
Black bruise on yellow cichlids5/10/2008Ron Coleman
  Q: My Yellow cichlid has a blackish bruise under its mouth. Is this a growth of some kind, or is she ...
  A: If she were holding eggs, the lower jaw would clearly be distended and you might even see the ...
gold fish5/10/2008Brit Brit
  Q: I have a pond in my back yard, full of gold fish, and one of our fish looks as if it had been shoved ...
  A: Have you noticed your fish rubbing itself against the decor or on rocks/gravel? Normally when fish ...
BETTA FISH5/10/2008Brit Brit
  Q: My fish has tail rot - fins seem to be ok. The edges of the tail is black and did not seem too bad ...
  A: First off, change out his water straight away, and stick to using just the betta remedy until he ...
frogs and crabs?5/9/2008Tom Lee
  Q: I have a 10 gallon heated tank with about 1 tablespoon of salt added. In which are two small ...
  A: I'm sceptical of this. Frogs have a tendency to be lethargic and lazy. They tend to stick to the ...
sucker fish / algae5/9/2008Tom Lee
  Q: I have several feeder fish in a 20 gallon tank. I think I've fed them too much and there are a lot ...
  A: The tank is taking on a slimy appearance due to algae. Try limiting the amount of time the light is ...
my oscar5/9/2008Ron Coleman
  Q: He has been acting very strange lately. He moved all his rocks to one side and seems to have a ...
  A: Oscars (like many cichlids) often change color as they mature. He/she is nesting because he/she ...
my oscar5/9/2008Ron Coleman
  Q: He has been acting very strange lately. He moved all his rocks to one side and seems to have a ...
  A: When an oscar moves all the rocks, that is not a bad sign, that is a good sign. He or she is making ...
Zebra Danios5/9/2008Tom Lee
  Q: I have recently purchase zebra danios. They are quite happy, and I think I have a breeding pair. The ...
  A: Zebra Danios eggs look like tiny blobs of see-through jelly. However, Danios are notorious ...
Zebra Danios5/9/2008Brit Brit
  Q: I have recently purchase zebra danios. They are quite happy, and I think I have a breeding pair. The ...
  A: Erika, Zebras are egg scatters, so marble or marble chips would be a good idea. A long, thin tank ...
Flower Horn and Ram Cichlid5/8/2008Ron Coleman
  Q: I have been raising a Red and White Flower Horn, I bought it when it was only 1.5-2inches and now ...
  A: The flowerhorn is not an African cichlid. It is a manmade variety of a fish from Central America, ...
my tiger barb is extreamly fat all at once5/8/2008Ron Coleman
  Q: i have isolated what i think is a pregnant tiger barb in a breeding net. i noticed she was ...
  A: You are probably right, most if not all will get eaten; that is why fish like barbs lay so many eggs ...
Please help my goldfish5/8/2008Tom Lee
  Q: I bought 2 goldfish, 1 died about a month later, I waited a couple of weeks and then bought another. ...
  A: The lump on your Goldfish's head was Lymphocystis - sometimes fish die from it, others make quick, ...
Gold Fish5/8/2008Brit Brit
  Q: He hasn't closed in 2 weeks and I do not think is able to eat. I looked in his mouth and did not ...
  A: Becky, Is there possibly something lodged in his mouth/throat, such as a piece of flake/pellet that ...
my tiger barb is extreamly fat all at once5/8/2008Ron Coleman
  Q: i have isolated what i think is a pregnant tiger barb in a breeding net. i noticed she was ...
  A: Tiger barbs are indeed egg layers and I strongly suspect that putting her in a net will cause her ...
Algee in tanks5/8/2008Tom Lee
  Q: I have a tank with Molly's and Guppys I am loosing the Mollys they just disappear, there are there ...
  A: There's a far more natural remedy to this than the one you were sold in your local fish store. All ...
breeding betas5/8/2008Ron Coleman
  Q: Recently i have become a beta breeder and i discovered there only needs to be 5 inches of water in ...
  A: Sorry Lee but I am not quite sure what you mean by "it has been 5 days since I have had them". Do ...
fish not swimmin'??5/7/2008Ron Coleman
  Q: i have had a fresh water tank, 10 galo for over 6 months with one fish. a gold fish. I bought 5 ...
  A: What actually keeps a fish tank healthy are the bacteria that grow on the surfaces of the tank and ...
male guppy5/7/2008Tom Lee
  Q: I have 4 male guppies and 4 females. One of the males which isn't as fancy as the others (it is just ...
  A: This could possibly be the onset of Hexamita. However, without actually examining the fish I'm ...
sick betta?or getting old?5/7/2008Ron Coleman
  Q: I asked Amber Worman this question but she was not able to answer. I hope you can help me... My ...
  A: You've given me a very thorough picture of the situation which is very helpful, unfortunately, I ...
Betta Fish Eye Problem5/7/2008Ron Coleman
  Q: He dropped suddenly in the change bowl and definitely my fault as I was too high for the pour. ...
  A: It sounds like he has a little physical damage to the outside of the eye. Fortunately, fish eyes are ...
cory cat5/7/2008Ron Coleman
  Q: My albino Cory cat has a eating problem and his fins are way shorter than normal. It's not fin rot ...
  A: As with any animal, a fish can be "born" with birth defects or develop defects as it grows. Extra ...
BETTA FISH5/7/2008Brit Brit
  Q: I have a few questions about betta fish. I've been hearing a lot of things from a lot of people. ...
  A: That is a great question, and I've heard it a lot, actually. There are thousands of misconceptions ...
Oscar5/7/2008Ron Coleman
  Q: I have an Oscar who is about 4 yrs. old. He is the only occupant in a 65 gal. tank that has been up ...
  A: You should normally be changing about 25% of his water once a week, every week. You have been doing ...
Bowl Fungud5/7/2008Brit Brit
  Q: and still is from what I can see. My problem is, there is some sort of bright green fungus growing ...
  A: That is actually a kind of algae. Algae is not just green, but can actually be blue, brown, and a ...
White Eggs5/7/2008tina quiao
  Q: Hye Tina I was wondering, if your angelfish layed eggs on the filter, is it okay to move it to a ...
  A: Belinda, I am sorry your eggs didn't ...
Fish food5/7/2008Amber Worman
  Q: I got a fantail goldfish but i dont know what it eats. will regular goldfish food do?
  A: Yes, regular goldfish food will be just fine for your fantail. A fantail is just a different type of ...
training my baby oscars5/6/2008Ron Coleman
  Q: i have jus got a tank and stand all set up and ready to house two oscars. i am in the process of ...
  A: They are a bit like people: it is hard to get them to their veggies if you give them lots of candy. ...
PH for Tropheus5/6/2008Ron Coleman
  Q: Ron, I currently have a Rio 180 fish tank with just a variety of Tropheus. I have run at a PH of ...
  A: First, take out the bogwood, that will make your water more acidic. Getting the coral sand was a ...
red betta fish5/6/2008Alex Kline
  Q: there are a lot of bubbles at the top of the water in a cluster, it looks like roe i have only one ...
  A: Its his next actually! Hes ready to mate so he decided to make a bubble nest for the eggs when he ...
Breeding Goodieds5/6/2008Ron Coleman
  Q: Although my question is non-cichlid-related, I am still hopeful you can help me. I am desperately ...
  A: Unfortunately I do not know anything about Goodeids. There is a guy up in Portland, Eric Rasmussen, ...
Mouth rot problem5/6/2008Tom Lee
  Q: I have become aware that one of my goldfish has mouth rot. I am ok with what to do now to try & stop ...
  A: The bacteria that causes mouth rot is closely linked to Aeromonas Hydrophilia which makes it ...
low ph in my tap water5/6/2008Ron Coleman
  Q: I have well water, very low ph, which causes problems in my tanks, I have a 45 gallon with 6 ...
  A: 6.8 is not low pH. 5.0 is low pH. 6.8 is almost exactly neutral. What kind of cichlids do you ...
Comet Goldfish and African Dwarf Frog5/6/2008Brit Brit
  Q: I have an African Dwarf Frog living by itself in an 8" x 5.5" x 4.5" tank with still water. I want ...
  A: You would be better off putting a few neon tetras in with your frog. They are more compatible (being ...
my female betta5/6/2008Ron Coleman
  Q: my female betta is picking the eggs off the ground why is she doing this.
  A: Hmm.... Are you saying that she laid some eggs on the ground and is now picking them up? Normally ...
Science Experiment5/6/2008Brit Brit
  Q: Im in 11th grade and me and my partner have science project dealing with fish. In this case we have ...
  A: Kayla, Honestly, I am a huge animal and fish lover, and do not approve of experimentation on any ...
sick gold fish.5/5/2008Alex Kline
  Q: Alex, I've had my goldfish for about 7 years. I recently did a partial water change (about 1/3) ...
  A: this is a difficult question to answer as I'm not there myself to see. It may be an internal ...

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Questions by
Active Experts:
Amber WormanBentyTrish S.
Shayaan ChaglaShortytina quiao
Alex KlineTom LeeRon Coleman
Brit BritChris Robbins 

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