yeah ok mate sure! get lost i know what im talking about thankyou, i gave advice. i keep my tank perfectly healthy and clean if i gave this guy my tank water it would technically be the same as me putting his fish in my tank so to speak! surely it would be better for the fish to live in my tank than just conditioned tapwater with and nothing else. exactly, youl do well to not reply as im not getting in a dispute with you!Your points not unclear, it's wrong. Using used fish water will not help. I really suggest you do some research before you trying to advise people, because what your saying is wrong and will result in more fish deaths,not really. the tank should contain used fish tank water from a cycled tank to begin with that way they are introduced into what is effectively a cycled tank, it would be easier on them than acclimatising them into simple tap water. this is my point. a little unclear i guessyour fish died because your tank isnt cycled or you didnt acclimatise them. did you float them in the bag for a while and gradually add some tank water to the bag before putting them in? this is called acclimatisation. its reccomened to avoid unecessary stress on the fish. you shoudnt need a filter if you actually only stock minnows or other tiny fish. fish produced ammonia and its the bacteria that lives in filters that eventually ( very long story cut short here ) break it down into a fairly harmless substance called nitrate. seems as you have onyl small fish a filter isnt necessary but water changes are still essential! also an air pump isnt needed, hes right water changes will be enough oxygen. to be on the safe side you can get a filter which also oxygenates the tank aswell. for example fluval u1 or u2.. this all i can be bothered to type lol good luck
The statement "your fish died because your tank isn't cycled" is incompatible with the "you shouldn't need a filter if you only stock minnows" sentence. Just saying. Apostrophes provided free of charge, btw.
It simple terms It doesn't matter what water you use, fish produce waste if there is no cycled filter to remove this waste and the harmful chemicals it produces then the dirty water will harm fish.
Sorry but you really are wrong. There is nothing beneficial that 'used' water has over clean, dechlorinated tap water and it will most certainly have fewer minerals and higher nitrates once fish have lived in it. Fish don't actually care what they swim in as long as liquid, got good oxygen exchange and no toxins or irritants. I read somewhere you could keep a fish in blood as it fits the bill! I wouldn't try it however!
I think you need to adjust your attitude, people are trying to help the OP and pointing out incorrect advice such as yours could be the difference between a miserable short existence and a happy life for his fish. You aren't coming accross well.
OP - a small Hang On Back (or HOB) filter would be your best bet as it doesn't take up any room inside the tank apart from a small intake pipe. You can do a water change, add the filter then continue to do daily changes for around six weeks until the filter is cycled. Then you can add more fish if you wish to, slowly.