The last few days I have noticed dark black rings/circles around my godlfish's eyes (I have 4). They are all in the same tank and I am worried they might be suffering from some type of disease due to ammonia or something else? Or I don't know if this is normal?
What are your ammonia, nitrite and nitrate readings?
I'm not sure.. I will have to go out and buy the tools to get those details..
This morning I noticed my oldest fish just sitting along the bottom of the tank. It looks weak and when I fed my fish this morning he made no effort to try and eat.. I don't know what might be wrong, their water is crystal clear as I did a water change just yesterday!?
Sometimes, aquarium shops will test water for free. Did you use a water conditioner to neutralize the chlorine compounds? Was the aquarium cycled before you added fish? If not, the water will have ammonia and/or nitrite. Goldfish tolerate it better than other aquarium fish, but you'll need to do lots of partial water changes. If you get time, you can use the search key at the top of the page to learn about the nitrogen cycle.
I will take a sample of the water to my local pet shop and see if they can help.
I have had the fish in this tank for almost 2 years and I do regular partical cleans every week.. I use a water conditoner each time as well. I just thought it was weird because I have never seen them looking so 'sick' before...
Thanks for your advice.. My fish are looking a lot healthier now and are swimming around a lot more than a few days ago! I have had a look around this forum and it is good these sites are available
Sometimes an established aquarium can get old tank syndrome. It just means that the substrate needs to be cleaned. If you have a conventional syphon arrangement with two tubes, push the large diameter tube into the substrate, and hold it until the water runs clear. Do that to about half the substrate, then wait a week and do the other half. Goldfish make lots of ammonia, so frequent partial water changes are a good idea.
As for water tests, the free ones can come with recommendations to buy lots of chemical fixes. Partial water changes are safer, cheaper and more effective. You can buy an ammonia test kit for five or ten dollars, and test kits for other parameters start at about ten dollars.
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You could try getting a bigger tank if your goldfish are too cramped. each goldfish should have about 10 gallons to move around it. Plus, you could change the water and use a water conditioner to make the tap water okay for goldfish.You can probably find this at your local pet store. Just ask a worker and he/she can assist you. You could also maybe feed them a different kind of food or replace your filter.
Black circles around the eyes? I get those when I don't get enough sleep. Are you turning the fish tank lights off at night? (just kidding!)
Don't goldfish acquire new pigmentation as they mature? I had some in a pond, and the black ones turned orange. Of course, aquarium size is also important to fish. Over crowding is a bad mistake.
As for not getting enough sleep, maybe they had to wake up real early to watch Formula One racing on TV.
Haha! They are looking quite healthy now, I am feeding them less (think I was over-feeding) according to my local pet shop!
I have noticed a slight colour change in one of the fish, he has lost some of his orange spots, and is almost all white now!
Thanks for all your advice!
My limited knowledge with regard to fish makes me think of two possible reasons for the pigmentation change:
1) your goldfish, if they have been subjected to bright light conditions may begin to change to a darker pigmentation;
2) your goldfish have suffered from acid burns (most likely caused by poor water quality and high levels of ammonia), the black pigmentation is a good sign as it shows the burned areas are healing
i just want to know why is my fi's eyes black im so worried and its not a gold fish and its soo small.
I'm sorry, but it's probably popeye.i can't quite remember what it looked like, so i might be wrong, but if I'm right, it may very well be fatal
i just want to know why is my fi's eyes black im so worried and its not a gold fish and its soo small.:blush: :S :( :huh: :ohmy: