8 Hard Water Aquarium Plants That Survive No Matter What

Hi, this is your friend Clifton Ervin, the founder and chief editor of this site, Aquariumwolf. I completed my graduation in marine biology and became...Read more

Aquariums aren’t really aquariums without natural vegetation and plants, right? Well, that’s why fish in the aquarium love it when there are more plants in the water.

But, it’s really hard to maintain plants in the aquarium if your water is hard water. So, you might be wondering which hard water aquarium plants you should keep in the aquarium.

In short, plants such as Dwarf Hairgrass, Limnophila Aromatica, Water Wisteria, Christmass moss, Ludwigia Arcuata, Brazilian Pennywort, etc. can easily survive in all types of hard water. So, they’re fit to keep in the aquarium in all water conditions.

However, there are a bunch of other plants as well that you can grow in your aquarium. So, if you want to find out more about which plants survive in hard water, read on !!

Does Hard Water Affect Aquarium Plants?

Hard water contains an excessive amount of minerals in it. As a result, it becomes difficult for the plants to grow and thrive in it.

For instance, the calcium and magnesium content in the hard water is extremely high. Consequently, it will disrupt the natural livelihood of “normal”  plants. That’s why a lot of plants will struggle to survive in hard water.

Does Hard Water Affect Aquarium Plants

Another reason why hard water is not suited for all plants is that plants naturally get rainwater in nature. Also, because rainwater is soft water (doesn’t contain any minerals), plants are accustomed to taking in soft water all the time.

Therefore, in an artificial environment such as the aquarium, it becomes very difficult for plants to survive in the hard water.

However, that doesn’t mean all plants struggle in the hard water. More specifically, there are a bunch of plants that can live spontaneously even in hard water.

8 Hard Water Aquarium Plants That Are Easy To Get

In this particular subsection, we’ll be going over some of the best-suited hard water aquarium plants for you.

Hard Water Aquarium Plants

All the plants that we have mentioned below are easy to get and are commonly found in aquarium shops. So, you won’t have any problem acquiring these at all. So, here we go:

1. Ludwigia Arcuata – Best Suited For Colorful Background

Ludwigia arcuata works as a perfect colorful background for your aquarium. It’s because this plant has a reddish appearance and it can survive in almost all types of water conditions (except for seawater). That’s why these are excellent choices for keeping in an aquarium.

Ludwigia Arcuata

Plus, in order to maintain them, all you have to do is provide enough oxygen and natural sunlight in the water. In addition to that, this plant can grow very fast as well. So, you can keep trimming it according to your will, whenever you want.

And, as an added bonus, this plant also has a tendency to make movements according to the flow of water. So, it can provide a lively natural vibe to your aquarium.

2. Dwarf Hairgrass – Perfect Lush Green Background

This particular plant has a light green tint and they are small in size. Therefore, this can enhance the beauty of your aquarium and provide a nice habitat for your fish. Plus, this plant can perfectly survive even in extremely hard water conditions as well.

Dwarf Hairgrass

Moreover, as the name suggests, the Dwarf Hairgrass provides a visual scenery of natural grass. As a result, when it’s in the aquarium, it’s a very soothing sight for the human eye to stare at. And, fish also love to swim around this small grassy plant.

Additionally, you’d be glad to know that this plant is available all around the globe. So, if you decide to keep it in your aquarium, it’s not going to be very pricey for you or rare to find.

3. Limnophila Aromatica – Best Flowering Plant In The Aquarium

Do you want to bring some flowery effects to your aquarium’s interior? Well, to do that, you can just use the Limnophila Aromatica plant. The specialty of this plant is that this plant can have various types of appearances that resemble actual flowers in the water.

Limnophila Aromatica

For instance, this plant can sometimes be pinkish, reddish, yellowish or just simple green. As a result, when this plant grows in your aquarium, it will practically seem like a full-fledged mini garden in your house.

And, a positive thing to note about this plant is that it only needs natural sunlight to grow in the hard water. Therefore, you don’t need to provide any intricate maintenance to it.

4. Hygrophila Difformis – Best Suited As Floating Vegetation

The best thing about Hygrophila difformis is that it doesn’t require much soil to grow on. That means it can easily grow in plain water whether it is hard water or soft.

Plus, the growth rate of this plant is moderately high, so planting only a small plantlet is enough to cover your aquarium with this plant.

Hygrophila Difformis

Moreover, this plant can easily survive in a wide range of temperatures (68° to 86° f). As a result, it is perfect to keep in an aquarium no matter where you live in the world (in all types of climates).

Furthermore, this plant can live in the hard water regardless of what the pH value is. Meaning, whether your water is acidic or caustic in nature, this plant doesn’t have any problem growing in it. Of course, sunlight has to be present for it to live.

5. Christmas Moss – Best as a staple plant in the aquarium

Perhaps one of the most commonly used plants in aquariums around the globe is the Christmas moss. Its specialty is that it doesn’t grow very fast. Therefore, you don’t have to trim it every month. Plus, it has a bold green tint and color. As a result, it serves as a perfect background for your aquarium.

Christmas Moss

Now, in terms of survival in hard water, this plant is a very stubborn survivor. This means it can easily survive in all types of water conditions including very extremely hard waters.

And, a positive thing about this plant is that it can act as a perfect habitat for zooplanktons and phytoplanktons. Therefore, keeping it in your aquarium is always beneficial for your fish.

6. Brazilian pennywort – Perfectly Unique Appearance (Flat Leaves)

Keeping Brazilian pennywort plants in your aquarium will provide you with a unique benefit. Its flat and semicircular leaves give off a visual vibe of the terrestrial rainforest. Consequently, your aquarium gets a very unique appearance.

brazillian pennywort

This plant can easily withstand harsh water conditions. That means it’s perfectly fit to survive in hard water aquariums. Now, in terms of physical construction, this plant has umbrella-like leaves that send out vines downwards.

As the vines touch the ground of your aquarium, the leaves will grow upwards towards the source of light. That means, if you want this plant to enhance your aquarium’s beauty, you must provide natural sunlight to your aquarium at a particular time of the day.

7. Buce (Bucephalandra) – Hard Water Slow Growers

At this point, we would like you to meet Bucephalandra. It’s a hard water plant that has a very versatile appearance.

Because this plant can come in about 30 species, they come in a wide range of colors. For instance, you might see this plant in red, green, purple, dark red, bloody red, dark green, etc.

Buce (Bucephalandra)

Now, in order to breed this plant in your aquarium, you will only need light (natural sunlight). And, it’s also perfectly fit to survive in hard waters. That means, caring for this plant is extremely easy.

Plus, planting this particular plant is extremely straightforward as well. All you have to do is cut a certain portion of this plant and attach the cut plantlet to the aquarium ground.

8. Limnophila Sessiliflora – Best For Tree-Like Appearance

Limnophila sessiliflora is a plant that can easily thrive in hard waters. For instance, if your water has 120 mg/L to 180 mg/L calcium carbonate, it’s extremely hard water. And, Limnophila sessiliflora can grow in this type of hard water without any difficulty.

Limnophila Sessiliflora

On top of that, this plant does not require a lot of care to thrive. For example, it can easily survive in water with a pH level of 5.5 to 8. That means, even if your water is somewhat caustic, this plant can easily survive in your aquarium.

Moreover, you’ll see that this plant is widely used in aquariums around the globe because it requires very little amount of light. Yes, this plant can even grow without direct exposure to sunlight. Amazing, right?

Optimum Aquarium Conditions: Best Water For Planted Aquarium

The quality of the aquarium water depends on many factors. And, these factors decide whether the aquarium is suited for your fish or not.

That’s why, below, we have mentioned all the parameters that will make your aquarium water most optimum for the fishes. The best water for planted aquariums must have these conditions checked:

Moderate pH level:

The optimum aquarium water should not be too acidic or basic. More specifically, it’s best if the pH of the aquarium is between 6.8 to 7.8.

Moderate hardness level:

The most optimum environment for aquarium fishes remains in soft water. That’s why aquarium experts always suggest that your water in the aquarium be soft.

But, if there is hardness in the water, make sure the water is only moderately hard. That’s to say, the general hardness (GH) value of your aquarium water should be 4-8 dGH.

Moderate temperature:

An ideal aquarium will have a temperature of 22ºC (about 72° f) to 30ºC (86° f). That means that aquarium fish thrive best when the water temperature is around room temperature.

Note: general room temperature is 25° C.

Optimum sunlight exposure:

Plants need some light to grow healthily, and there’s no other way around it. That’s why your aquarium must receive a minimum amount of sunlight at a particular time of the day.

Can Hard Water Kill Aquarium Plants?

Hard water doesn’t immediately kill aquarium plants. However, it does make it difficult for the aquarium plants to receive their necessary nutrients.

But, that doesn’t mean that all aquarium plants struggle to live in hard water. In fact, many aquarium plants thrive well in hard water just as they do in soft water.

Concluding Words

Well, that’s all there’s to it, people. Now that you’ve got a clear understanding of the 8 best hard water aquarium plants and lots of related information.

The bottom line of this discussion is that hard water plants are not hard to come by. In reality, a lot of plants can survive in extremely hard water. That means, even if your aquarium water is rich with hardness, you won’t have any problem keeping vegetation healthy in the aquarium.

Moreover, if you can plant the plants we have suggested above in your aquarium, maintaining the vegetation will be even easier for you.

Thank you so much for dropping in today, you guys are the bee’s knees. Best of luck to you and peace out!!!

Hi, this is your friend Clifton Ervin, the founder and chief editor of this site, Aquariumwolf. I completed my graduation in marine biology and became an Ichthyologist. One of my favorite hobbies is aquarium keeping; therefore, I love to talk about fish keeping, breeding, food behavior, etc., and much more relevant to aquarium maintenance. I have created this site Aquariumwolf, to share my 20 years+ of experience and knowledge with all new to this journey.

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