I have a reef/fish tank with a yellow tank that turn brown with some yellow spots, whats wrong with him?

The yellow tang is not old so it shouldnt have changed color, its about 3 inchs and was yellow when i bought it. Not is it brown with some yellow spots, and my other fish are now sick also, what can i do?

I have a lion fish, puffer and a rabbit fish that look like they are starting to get coudy eye. The puffer i put in a bucket to try to treat since he seemed to have ich and then got the cloudy eye. He has gotten a little better after almost 2 weeks of being in there (eats now and is more active).
Answers:
Your fish are suffering form poor water quality which has allowed them to have problems fighting bacteria in your tank. Start changing 10% of the water every day. If you don't have a skimmer, get one. Also consider adding a vitamin/garlic supplement to your tank. When you fish have recovered, I would suggest slowly increasing the amount of live rock or sand bed to help out with your biological filtering.
A

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here is a web site hope it helps.

http://www.whozoo.org/anlife99/loriwood/.

it sounds like if you separate them all from each other until they are all better then slowly put them back in one tank it should be good. if not call a vet. Fish are important to. :)

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..another reason people should have a "quaruntine tank"..


www.saltwaterfish.com
go to the message boards and you can learn about the diseases and treatments.

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if it is ich than you can do this:
go to the phamacy and buy some garlic pills that are full of liquid, then every night at feeding time, squeeze a tiny drop onto their dry food and mix it up, then feedd it to them. If you start to get a film on the top of the water, you know that you are feeding them too much.

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How big is your tank? Not sure on salt water, but in fresh water, cloudy eye is a sign of poor water quality. I'm guessing your tank is overstocked, and you're not doing enough water
changes.

Lionfish need at least a 55 gal tank to themselves, as well as the yellow tang, and depending on the types of the other 2 55-100 gallons each.
So, if you have a 200 gal + tank I apologize, but otherwise, you might consider a bigger tank or getting rid of most of them. Otherwise they're going to end up dying, and SW fish are rather expensive IMO.

Here's some links for some forums/info, search around, but I would suggest first starting with water changes.

http://www.liveaquaria.com/product/categ.

http://www.fishforums.com/forum/.

http://www.aquariacentral.com/