Originally Posted by Kevin34
I do have a test kit but they are just the basic test strips. I dont think it is HLLE but it is the rosy barb that is sick. I think it is because of the bad water quality because of the bent tail like you said and they both have some scales missing. I started the tank before I knew about proper fish care and that is why the water is so bad. I have been trying to improve it for a long time now but with tap water it is just so hard. I just did a pretty big water change and added a couple buffers. If I turn the filter on would that effect the buffer? It is a simple Whisper hang on filter. I have the filter media changed and ready to go in case it should be turned on.
I must have missed this, you absolutely should have the filter on!!! What part of the water quality is bad? You have had this fish for years, you never tested the nitrates? If the filter isn't on then test ammonia and nitrite as well.