A lot of people post their questions, sometimes in a desperate need for quick answers. To help make your question answered more quickly, it'd be helpful to the guru's if you have the standard things needed in order for a more accurate solution and/or answer. Some have noticed that when a question is asked, the first few posts don't get right down to the grit, instead, they begin with their own questions. These questions are very important in helping us warm up to your situation at hand. When posting: Pics help, there's nothing better than something we can see for ourselves as you describe the problem going on. 1. You should mention the size of the tank. Litres or Gallons work or if you want, you can list both by going to google and typing in (for example) 30 litres to gallons or 30 gallons to litres (whichever applies), google will provide you with the coversioned number. 2. You should mention whether you have cycled, and if so, was it fishy or fishless. If you haven't cycled due to poor recommendations of your LFS, it's best we know that because of the danger and immediate action needed at that point. 3. You should mention how long the tank has been running or if so, how long it's been stabilized. 4. You should mention whether this is a planted tank. If the plants are the issue, mention the lighting you have and the inhabitants and substrate. 5. You should be mention what size of tank the fish is in or that you are mentioning. Sometimes, the size of the tank is a big issue for when something is going awry. 6. You should mention what other inhabitants are also in the tank and if they are also affected by the cause of your post, and if perhaps you do have a quarantine tank which can hold all new fish for a couple of weeks or so and/or a hospital tank for which the sick fish can reside in during their recovery. 7. You should have tested the water prior to posting, indicating your pH levels, your Ammonia levels, your Nitrate levels, and your nitrite levels. These can be big indicators of fish acting weird. 8. If there is cloudy water, indicate whether it is a white or green cloud. You can do this by putting a white sheet of paper on one side of the tank and looking through to see the color. 9. If you do have a cloudy water issue, let us know what you have done in the meantime such as changing filters, substrate, added clearing chemicals, etc. 10. You should mention your water maintenance schedule, this includes water changes and gravel cleanings. It should mention how much water is changed and gravel is cleaned and how often. 11. You should mention whether you use a water conditioner to rid the water of chlorine and/or chloramines. 12. You should mention what substrate you have, sand or gravel and whether you have driftwood in the tank. 13. You should mention what type of filtration is on the tank and if there is a heater or two. 14. If there is a heater, let us know what you keep the temperature at for your fish, sometimes it's just a heating issue. 15. You should mention if any remedies have already been started on the tank and what process you went about to starting it. I know this seems like a lot but it's extremely helpful for everyone if these things listed so we can help you more efficiently in what may be an emergency situation.