Originally Posted by Chrisb2011
Hello there thanks for the quick response i have had the tank set up for a little over 1 week and I took wrong advice from a Pets store as they said it's fine bassicly just buy some fish and put um in I can't remember exactly what they wer of the top of my head but it was done today
Nitrate was slightly high aslong with ammonia I am putting 15 ml of water conditioner in everyday and doing another 25% water change on Thursday as I did one today and I did the water change then got the water tested it is also a 125 litre tank and I think it's the fluval v3
Fort is giving you sound advice. Basically, to break it down and make it easy to understand, every new tank needs to grow bacteria to process fish waste...this process is what everyone refers to as "cycling". When testing your water parameters, you will see the fish waste register as ammonia. Once some good bacteria starts to grow and break down the ammonia, you will get a NitrIte reading. As more good bacteria begins to grow, the nitrItes will be converted into NitrAtes. Any reading over .25ppm of Ammonia and NitrItes can start to stress/harm your fish. NitrAtes are not as harmful to your fish and any reading under 20 is ideal while up to <40ppm is acceptable. Once you consistantly get 0ppm readings for Ammonia and NitrIte, then you know your cycle has been completed. Until that happens however, it is up to you to keep track of your daily ammonia and nitrIte levels. Anytime they are over .25ppm, you need to do a partial water change to lower them. This may mean daily or even 2x daily partial water changes. Anytime you add fresh water to the tank, it will help your ammonia and nitrite levels to go down....which in turn means healthier fish. If you don't have a test kit I highly recommend getting one as soon as possible. The most reliable way of testing is with a liquid test kit which can be found at many Pet stores. (API Freshwater test kit is a very popular brand.) Once you are able to test your water and let us know just what your water parameters are, we should be able to give more specific advice that can help your current situation. It definitely sounds like your fish are under a bit of stress...Tiger barbs are usually very active fish and should not be hiding behind your filter.
Also just curious, but what sort of "water conditioner" are you adding?