[SIZE=14] omg i dont know whats wrong, i have 2 little black moors and 1 of them is sitting on the bottem of the tank, hes not dead cause he swims around a little then goes back to sitting on the bottem and i have a 16 L tank with a filter and little bubbler, i use a water conditioner and add 34 drops per 16L when i tested the water this morning it said it was ok, i feed my fish goldfish flakes and i havnt used any meds....please help i have only just had 2 die on me and i bought new everything so that these would live.

Please PLZ!! someone tell me whats wrong with him, cause now the other has started doing it to

Sorry to hear about your fish.

It would help us a lot if you could fill in the chart at the top of the page. Off the bat, I would suspect there's something off about your water quality, as a 16 liter tank is just a little over 4 gallons. Goldfish produce a lot of waste, and it would be extremely hard, if not impossible, to keep on top of the water quality in a tank that size.

Please test your water for ammonia, nitrite, and nitrate and get back to us.

How do i test that? i have a PH tester and it says 7.0

You can get test kits at the pet store. I prefer the kind where you put drops in a test tube, as they're generally more accurate.

How often do you change your water, and how much do you change? I think the best thing to do right now would be change out some, or even all, of the water. If you usually change it all out, I'd go ahead and do that. Otherwise, I'd do a fairly large change, maybe 50%, to get potentially high levels of bad chemicals down.

Again, the answers to the questions at the top of the page would help a lot.

Ammonia Level Nitrite Level? Dont know :S
Nitrate level? Dont know
Ph Level? 7.0
Ph Level out of the Tap? 6.6/6.8
Tank size(How many Gals) 16L
and How long has it been running? 3 days
What kind of Filtration? just a filter that came with the tank
How often do you change the water and how much? only had it for a couple of days
What kind of Water additives or conditioners? Water Ager ST
Any Medications add to the tank? no
How many fish in the tank and there size? 2 and about 3/4cm
Add any new fish to the tank? no
What do you feed your fish? Goldfish flakes
Any unusual findings on the fish? no
Any unusual behavior? yes they sit at the bottem an sometimes come and swim around then go back almost like they are tierd

Thanks. That gives us a much better picture of what's going on with your tank. You haven't had your tank set up for very long, so it hasn't cycled yet. I would recommend clicking here to learn more about that.

Unfortunately, the load of waste in your tank is probably going to be too much for its size, and it may never cycle. Is there any way you could get a larger tank? 20 gallons would be ideal, along with a filter that pushes at least 200 gallons per hour. If you can't afford a fish tank at the moment, a large plastic storage container would also work as a home for them.

For now, I would change your water out completely once a day. See if you can't find a bucket to put your fish in with some of their old water. Then put new water in the tank after treating it with the water conditioner. You can then use a net or a cup to move the fish back to the tank. Make sure the new water is the same temperature as the old, so you don't shock the fish in the process.

It would help you greatly if you could get a water testing kit, so you can keep an eye on your levels of ammonia, nitrite, and nitrate. This will let you know how often you need to change your water.

Good luck, and post back soon!

Edit: 20 gallons is about 75 liters.

If i change them once a day they will get stressed wont they, the water is clear, its not murky at all. and i only feed them every second day and not much only about 2 flakes crumbled up

75 L for 2 babies?? thats a big tank i wont be able to find them

High levels of ammonia and nitrites and even nitrates to an extent will stress your fish much more than daily water changes will. That's what they're doing now--showing that they're stressed. Ammonia, though you can't see it, actually burns your fish. The burns themselves won't be visible, either, as they show a black color and your fish are already black. I suspect that's what you have in your tank at the moment, and that's why they're acting sick.

oh ok, so why is the water testing neutral, i had two babies b4 and they were in a 6L tank :S and there water kept testing 6.4 and 6.6 and no matter how i changed the water it still didnt change and they died.

pH is just one of the things that can hurt a fish. And actually, a wide range of pHs can be acceptable, provided they don't change much. The pH in your tank should be roughly the same at the pH from your tap, and it won't change except in certain circumstances, regardless of how much you change the water.

im scared if i change the water they will be get shocked, after all ive had them in it for 3 days, is there anything i can get to lower the ammonia like drops?? i got this black stuff in my tank starter kit and its called Aquariam Carbon what does that do and should it be in my tank now? if so where?

If you're scared to change out all the water, just change out half to three-quarters of it for now. You'll have to do this more often, but it is a little less stressful for the fish. If you have a siphon, you can use that to take the water out; otherwise, just scoop it out with a cup. It shouldn't take too long, as your tank isn't too big. Then just fill it back up with treated water. I would recommend doing this twice a day, given the size of your tank.

There are a few products that "bind" ammonia into a less harmful substance, but they really don't do anywhere near as good a job as a good old water change will. I'm not sure where you're from, but some products in the US that do this are called Prime and Amquel+.

The carbon really won't do anything unless you need to get rid of medication in your tank. Since you haven't added any medication, you don't need the carbon right now.

Ok, took out about 50% of the water and put in freshly treated water. how long do u think it will be b4 they start showing signs of being ok.

Hi fpv girl, I saw your other thread so I came here to check it out. Kortinee has given you the correct advice. It appears that your fish are suffering from 'new tank syndrome' which basically means that the water and the filter in a new set-up are immature. They haven't had time to grow the necessary bacteria to breakdown fish waste into non-toxic form.

Even though the water looks clean and clear that doesn't mean it isn't toxic. If you get some test kits you will be able to monitor this for yourself, without test kits you can only guess how toxic the water is.

Some water conditioners, such as Prime, detoxify ammonia and nitrIte and are extremely useful when your tank is cycling (or new). The simplest and safest way to keep the toxic levels down is to do partial water changes every day. Since we have no readings for your water parameters it is best to be on the safe side and change 50% of the tank daily. Make sure to match the temperature as closely as you can just using your fingertips as a guide, a little hot water from the kettle mixed into the bucket does the trick.

Also, you are doing the right thing in keeping feeding amounts down during cycling so as not to create too much waste. However I think it would be safe to feed them daily, you are not feeding too much so daily should be ok.

It should take about one month for your tank to cycle. If you don't have test kits by then you can take a sample of your tank water to the pet store and they usually test it for free. If the ammonia and nitrIte levels are zero then your tank has cycled and you can probably cut back on water changes.

Your fish should feel a whole lot better if their water is non-toxic.

Forgot to add that ammonia and nitrIte poisoning can be fatal or can cause irrepairable damage to your fish. I'm sorry but it is possible that your fish may not recover.

thanks for your help, i read in one of the sites u could buy some drop and also feeding tablets that up the good bactiria growing in your tank and do it quik, i dont want my fish to die should i get this and will it help straight away, im really new to all this.

I've never heard of feeding tablets but there are two products that help cycle a tank. One is called "Cycle" and the other is called "Biospira". By all accounts Biospira is supposed to be the best thing on the market, only problem is that it's hard to locate, expensive and I don't think you can buy small size bottles. You would probably end up paying for 10 times more than you would use.

I have used "Cycle" in all my tanks and it helps a great deal. You will still need to do daily water changes but most likely for a shorter time and smaller changes.