If your ammonia is 0, your nitrites is 0, and your nitrates is 10 or less, then check your PH. Often if your PH has crashed, fish may surface more often than usual.
If your PH is starting to crash, they may hang around at the bottom with their fins clamped.
For a freshwater tank, its safe to add fish after the the ammonia, nitrite, and nitrate levels are safe for fish. Ammonia and nitrite should be at 0 ppm and nitrate levels should be very low, under 50 ppm. You should also make sure that other parameters are safe for the species of fish that will be living in the tank.
Ammonia is typically more toxic than nitrate to aquatic organisms. Ammonia is highly toxic to fish even at low concentrations, while nitrate is less acutely toxic but can still be harmful at high levels, leading to issues like algae blooms. Both compounds can negatively impact water quality and aquatic ecosystems.
Yes, elevated levels of nitrate can negatively affect fish health. While fish can tolerate low concentrations of nitrate, high levels can lead to issues such as decreased oxygen levels in the water, which can stress fish and impair their ability to breathe. Additionally, excessive nitrate can contribute to algal blooms that deplete oxygen and produce toxins harmful to aquatic life. Therefore, maintaining balanced nitrate levels is crucial for a healthy aquatic ecosystem.
Fish waste includes ammonia (NH3), which breaks down into nitrites, then nitrates. Both in your store and at customers' homes, freshwater fish aquariums should be closely monitored for levels of these three waste products. Ammonia should test at zero in established tanks with sufficient nitrifying bacteria. However, ammonia can rise to very high concentrations in new tanks or when too many fish are added. Levels should be carefully monitored in new tanks and after adding fish, particularly in smaller tanks where waste can concentrate faster. Nitrite (NO2) and nitrate (NO3) should be monitored closely. Ammonia is broken down into nitrite, which is less toxic but still dangerous to fish at high levels. Nitrite is then broken down into nitrate by another type of bacteria, completing the nitrogen cycle. Nitrite generally is detected in only new tanks (during the initial phases of establishing nitrifying bacteria colonies) and when new fish are added. In established tanks, nitrite levels should test at zero as it breaks down into nitrate. Nitrate will accumulate in the aquarium over time but can be kept at safe levels by frequent partial water changes.
Before introducing delicate fish into an aquarium, it is important to ensure that the water parameters are within the ideal range. The ideal pH for most freshwater fish is between 6.5 and 7.5. Water hardness should typically be around 5-12 dGH for most freshwater fish. Nitrate levels should be kept below 40 ppm, nitrite levels should be at 0 ppm, and ammonia levels should also be at 0 ppm to ensure the health and survival of delicate fish.
The only way to control deadly poisonous Ammonia and Nitrite is to have a properly cycled filter. The naturally occurring bacteria in the 'cycled' filter media, converts the ammonia firstly into nitrIte and then converts the nitrIte into relatively harmless nitrAte. Regular water changes prevent the nitrAte from building up to dangerous levels.
When ammonia levels are high in a fish tank, it can lead to toxic conditions for the fish, causing stress, reduced immune function, and potentially fatal gill damage. Symptoms of ammonia poisoning include gasping at the surface, lethargy, and abnormal swimming behavior. High ammonia levels typically indicate an imbalance in the nitrogen cycle, often due to overfeeding, insufficient filtration, or inadequate tank maintenance. Regular water testing and immediate corrective actions, such as partial water changes, are crucial to mitigate the effects.
Ammonia poisoning resulted from incomplete nitrogen cycle or no filter at all, shock from sudden change in water temperature and (or) water chemistry, overfeeding. These are the leading causes for fish dying in a fish tank. In fact, the average life span of fish sold in the U.S. is only 3 weeks. Nitrogen cycle is the most important of them all, since it is unknown for most new fish keepers.
Fish waste itself is not called ammonia, but it does produce ammonia as it decomposes. Fish excrete ammonia directly through their gills and urine, which can accumulate in aquatic environments. Ammonia is toxic to fish at high levels, making it essential for aquarists to manage waste and maintain water quality. Proper filtration and regular water changes help mitigate ammonia buildup in fish tanks.
Differnt types of fish tanks will need different levels on nitrate. However, most fish tanks benefit from as little nitrate as possible. Saltwater tanks should have almost no nitrates. Freshwater planted tanks conversely, should have about 10-20 ppm nitrate. For most normal, tropical freshwater aquariums, keeping nitrates below 20ppm is acceptable.
Just as we put out bi products when we breath so do fish. They also poo and wee in their environment. These products of life become deadly poisonous Ammonia as they break down. In order for things like fish and plants to be able to live, Nature developed specific bacteria to change the deadly poisonous Ammonia into relatively harmless Nitrate in water. Then the nitrate can be used up as food for water plants and algae. A "cycled" filter is simply a filter that has been running for long enough to develop the natural bacteria that converts Ammonia into Nitrate. The over abundance of Nitrate can be removed by simply doing a weekly water change.
To ensure the health of your fish, regularly change a portion of the water in the tank, use a water conditioner to remove harmful chemicals, and test the water regularly for pH, ammonia, and nitrate levels. Additionally, maintain proper filtration and temperature levels in the tank.