Do Live plants help with nitrites?
Daniel Moore
Published Jan 09, 2026
Healthy aquarium plants absorb nitrogen compounds including nitrite and ammonia from the water. The fact is, keeping plants healthy and happy takes more work than most people realize.
Do Live plants help with nitrates?
Keeping live plants: Live plants utilize nitrate and will help keep the levels lower.
Do plants absorb nitrates or nitrites?
Nitrates can be used by plants and animals that consume the plants. Some bacteria in the soil can turn ammonia into nitrites. Although nitrite is not usable by plants and animals directly, other bacteria can change nitrites into nitrates—a form that is usable by plants and animals.
What plants are good for removing nitrates?
The 5 Best Aquarium Plants to Reduce Nitrates
- Live Hornwort Plant – Best Overall. Check Price on Chewy. ...
- Aquatic Arts Marimo Moss Ball – Best Value. Check Latest Price. ...
- Greenpro Anubias – Premium Choice. Check Price on Chewy. ...
- Mainam Dwarf Hairgrass. Check Latest Price. ...
- SunGrow Aquarium Grass Seeds. Check Latest Price.
Do aquarium plants absorb nitrates?
Plants absorb nitrate through their roots, leaves and/or stems and use it as food.
45 related questions foundDo plants lower nitrites?
Healthy aquarium plants absorb nitrogen compounds including nitrite and ammonia from the water. The fact is, keeping plants healthy and happy takes more work than most people realize.
Do plants eat nitrite?
According to "Ecology of the Planted Aquarium", plants do take up nitrite. In general, ammonium is the preference over nitrite or nitrate. But duckweed prefers nitrite over nitrate.
Why can't I get my nitrite levels down?
Doing water changes is the only way to get your nitrites down. Keep up the changes and remember that water changes do not slow down a tank cycle. You have to grow the nitrite eating bacteria and that bacteria will reduce them to 0. If you keep removing every bit of them with water changes, you can't grow the bacteria.
How fast do plants remove nitrates?
Like any other aquatic plant, Pothos will lower nitrate levels but at a much faster rate compared to other plants. Pothos plants are very fast-growing houseplants, therefore they require nutrients at a faster rate. Pothos will absorb the nitrate from your aquarium very rapidly, more precisely in 4 to 5 days.
Does water lettuce absorb nitrates?
Water lettuce has an efficiency of removing 83% nitrate nitrogen, 84.8% ammoniacal nitrogen and 81.6% Phosphate from sewage.
Will Live plants help cycle my tank?
Live plants help to cycle a fish tank by absorbing ammonia, nitrite, and nitrate. Also, live plants increase oxygen in a fish tank which helps to increase the beneficial bacteria which is responsible to cycle a fish tank.
Why do plants need nitrite?
In particular, nitrogen is responsible for foliage development. Plants use nitrogen in the form of nitrates, which is nitrogen mixed with oxygen. They usually absorb nitrates from the soil.
Is nitrite toxic to plants aquarium?
Nitrite is usually very quickly converted to nitrate, by more agressive bacteria, Nitrobacter. Nitrite is known to be toxic to terrestrial plants, even at low levels. The same is true for aquatic plants. So plants can utilize nitrogen either in the form of ammonium or nitrate.
How do you lower nitrites?
To prevent high nitrite levels:
- Complete regular water changes of up to 30% and test your water.
- increase aeration.
- maintain a healthy filter (if you need to clean elements of the filter use water from the aquarium as tap water will damage the bacteria that remove Nitrite)
Is 40 ppm nitrate too high?
Nitrate levels from 0 – 40 ppm are generally safe for fish. Anything greater than 80 can be toxic.
Does duckweed remove nitrates?
It usually takes the duckweed three to four weeks to use up all of the ammonia, nitrite, and nitrate. As reported in Biomass Magazine, duckweed bioaccumulates about 99% of the nutrients contained in wastewater. In some cases the plants also have been shown to remove other pollutants, such as lead and arsenates.
Do moss balls reduce nitrates?
Sucks Up Nitrates and Other Nasties
Like live plants, moss balls absorb nitrates. But—also like plants—it's usually not a large amount. The ball would make a difference only if it were kept in just a few gallons of water. Still, any nitrate absorbent is a benefit to your tank's ecosystem.
How long does it take for nitrites to go down?
This process normally takes anywhere from 2-6 weeks. At temperatures below 70F, it takes even longer to cycle a tank. In comparison to other types of bacteria, Nitrifying bacteria grow slowly.
Do Live plants help with ammonia?
Live plants provide your fish a natural food source with the ability to replenish. By far the biggest benefit that live plants provide for your aquarium is that they produce oxygen (O2) and absorb the carbon dioxide (CO2) and ammonia (NH3) that your fish generate.
Will Stability lower nitrites?
This is because Stability will directly get rid of the ammonia, nitrites and nitrates in your tank after 24 hours.
How long do nitrite spike last?
Nitrites can appear "stuck" for a period of time before dropping. When they start to go, they can go over night, however. I would guess about a week to 10 days before they go. Make sure you do no cleaning of that tank or clean the gravel.
Does water change lower nitrites?
First, perform water changes with dechlorinated water to reduce the nitrite level. The addition of a half-ounce (1 tablespoon) of salt per gallon of water will prevent methemoglobin toxicity by blocking the nitrite absorption through the fish's gills. Any aquarium salt or marine salt mix can be used.
Can you overcrowd a fish tank with plants?
Generally, an aquarium can not have too many plants. As long as your fish have space to swim, you can't really overdo plants. Even thick plant cover simulates the natural habitat of many fish, especially small community species like livebearers that are typically prey in nature.
Should I put live plants in my freshwater aquarium?
Live aquarium plants produce oxygen and absorb some of the carbon dioxide, ammonia and other harmful nitrates that your fish generate. This puts less strain on your filtration system (though should never be used to replace your filter) and helps maintain good water quality, keeping your fish happier and healthier.
Can I add fish and plants at the same time?
If you add a small number of fish at the same time you establish the colony of bacteria you want right away. So, it isn't a good idea to fill a tank, add nothing living to it, and wait for it to "cycle" before adding any living thing. If you want to grow plants you need to provide them with light.