SKU: 19411896225

Willow Moss 5x5cm

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Description

Willow Moss 5x5cmWillow moss (Fontinalis Antipyretica) is a great vivarium plant to have in aquatic enclosures. Its ability to absorb minerals, tolerate lower temperatures as well as low light requirements, are all reasons to consider using it in a vivarium. The pleasing look of this moss is great for adding diversity to underwater settings and its close resemblance to other more familiar mosses makes it an easy transitional plant to pair with others. The caretaking

Willow moss (Fontinalis Antipyretica) is a great vivarium plant to have in aquatic enclosures. Its ability to absorb minerals, tolerate lower temperatures as well as low light requirements, are all reasons to consider using it in a vivarium. The pleasing look of this moss is great for adding diversity to underwater settings and its close resemblance to other more familiar mosses makes it an easy transitional plant to pair with others. The caretaking for this plant is minimal, making it a wonderful plant to have in any level expertises possessions.

Scientific Name: Fontinalis Antipyretica

Family: Fontinalaceae

Common Names: Willow Moss, Greater Water Moss, Common Water Moss, Antifever Fontinalis Moss

Habitat: Cool Water, Freshwater

Height: 24 inches Tall

PH Range: 5.5 to 7.5

Temperature: 59°F to 82°F

What Is Willow Moss?
Fontinalis Antipyretica is a species of moss in the Fontinalaceae family. This moss is commonly referred to as willow moss due to its willow tree-like appearance. Though this moss is not a fairly new bryophyte to the world, it has recently become a more sought after plant to put in cooler water aquariums. Another reason for its recent rise in popularity may be due to the fact that Fontinalis shares a lot of visual similarities to the very well known plant, Java Moss.

Willow moss (Fontinalis Antipyretica) care guide

Willow Moss Facts
Fontinalis Antipyretica is commonly referred to as Willow Moss due to its striking resemblance to willow trees. This plant is also commonly known as Greater Water Moss, Common Water Moss, and Antifever Fontinalis Moss. An interesting fact about Fontinalis Antipyretica is its scientific name in Latin translates to “the water moss that stops a fire.” Not quite sure if it, in fact, lives up to its name but I can’t imagine many fires having much luck underwater… So willow moss has my vote!


Description
Willow moss has a very common look when comparing it to other aquatic mosses. As I stated earlier, this plant closely resembles Java moss. The distinguishable difference between the two is the size of the leaves and branches of each plant. Willow moss looks significantly larger, bearing a thicker branch and stem system as well as bigger leaves sprouting from it.

Fontinalis generally comes in various shades of green. The more sunlight it receives typically makes it darker. If the moss starts to brown or appear tannish in color, it either isn’t receiving enough light or above water for too long. The oval-shaped leaves that grow from willow moss can get up to a quarter-inch in length. The stringy stems that branch out from the base are firm, spinely, and can get up to 24 inches in length.

Habitat
Willow moss is thought to be native to the upper region of North America but can be found in Europe, Asia, and Africa. The environment this freshwater plant is accustom to is fast-flowing rivers and springs. This bryophyte is often found caught between stones and fallen debris in the wild.

One thing I find extremely interesting about this plant is its preference to tolerate lower temperatures than other mosses. Willow Moss is a cold water thriving plant, making it great for aquariums that house cold water inhabitants like Goldfish. Considerable temperatures will range between 59 and 82 degrees Fahrenheit.

pH Preference
Another well-liked feature with willow moss in the aquascaping hobby is it’s hardy tolerance to various types of water conditions. Most bryophytes typically like to stay around the acidic side of the PH scale… But this moss can tolerate PH levels as high as 8.5! That’s an awesome good-to-know fact if your current tank has hard water conditions and you really the idea of adding a tolerable moss to the enclosure. A thriving PH range to consider keeping this plant around would be anything higher than 5.5 but no higher than 7.5.


Vivarium Type
This type of moss will do great in a variety of vivarium types. When deciding if rather or not to use willow moss in a particular type of enclosure, Be sure to go with setups that have some level of aquatic areas. Here are recommended vivariums this plant will do well in:

Paludariums – Half aquatic/ half terrain-based enclosure.
Ripariums – Mostly aquatic-based enclosure with some terrain features present.
Aquarium – Fully aquatic-based enclosure with little to no dry terrain.
Vivarium Placement
When it comes to vivarium placement for this type of Fontinalaceae, it can go in a number of places as long as it remains fully submerged in water. Being a centerfold type of plant, it would do really well-accenting hardscapes in the foreground area of the enclosure. Place it around rocks or tie it to wood branches and allow it to fully establish itself before pruning. It should go in an area that receives some level of light and it will eventually creep its way horizontally making a nice lushes carpet.

Substrate
Substrates can play a role in helping willow moss anchor to the desired position. Any type of aquarium media will do fine for this moss since it will not need it to absorb nutrients. As I mentioned earlier, Fontinalis can latch on to any type of firm surface so the substrate is not an absolute necessity when caring for this plant. Rocks, wood, sand, gravel, and dirt are all-sufficient substrates that can be used to help lock willow moss into place.

Lighting
The chilly rivers this plant is native to have shaded and indirect sunspots this plant spends most of its time on. Fontinalis Antipyretica can handle moderately bright lighting scenarios but will do best in lower light elements. Avoid direct sunlight and bright light sources. Sunlight could alter the temperature of the vivarium resulting in a warmer, more undesirable water condition. This moss should be given moderate to low levels of artificial lights since it usually takes shelter in shallow riverbeds in the wild.

Reference
bantam.earth/willow-moss-fontinalis-antipyretica/

Portion Size: 5x5cm when laid out flat which equates to 2-2.5 grams weight (without excess water)

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SKU: 19411896225

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4.4 ★★★★★
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Skylar Hartnett
New York, US
★★★★★ 5
It works to divide a room, but it's not easy to use.
Color: Grey, Size: 6 Panel
This comes in multiple pieces and you have to build every single piece including the cloth that is between the two poles. There are plastic clips to hold the sections together, but they easily come off if you move the dividers the wrong way or try to reposition it. The only thing holding it up is rectangular shaped feet on the bottom and they are a pain when you hit it with your toes. It works if you need to divide a room, but its not pretty and there are far better options. It's cheaply made and has a habit of falling down if you are trying to use it in a straight or slightly angled line.
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Reviewed in the United States on December 26, 2022
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Amazon Customer swengelp
Omaha, US
★★★★★ 4
Nice divider
Color: Black, Size: 6 Panel
Nice divider. Set up is a bear. I am a bit concerned with stability. Overall I like it.
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Reviewed in the United States on March 12, 2026
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Nay from the Bay
Natrona Heights, US
★★★★★ 5
Great privacy room divider
Color: Black, Size: 6 Panel, Color: Black, Size: 6 Panel
I got this room divider for our game room that shares the garage/laundry room, to separate the spaces. I was happy that it was relatively easy to put together in less than an hour with nothing more than a screwdriver (provided) although I used a small handheld drill. The instructions were pretty straightforward and easy to understand as everything was labeled. I have 2 small grandkids at home running around while I put this together so my timeline to completion might be longer than others. It recommends 2 people to assemble, but I was able to complete alone in about 40 minutes total and as I said I used a small handheld drill, (although it does come with a small Philips screwdriver) which is the only tool you need for assembly. The first two panels took me about 20 minutes but the other 4 were simple repeats after the initial 2. After all 6 panels were assembled the plastic clips to piece them together were literally a "SNAP" to put on. The poles are made of metal and the panels are made of a very sturdy almost canvas like fabric. When held up to the light not a lot shined through so very good for privacy. You can snap them together in sections and have 2 separate panels of 3 or what ever configuration you want. They are easy to move and bend around furniture or other obstacles, also fold flat together if you need to put them aside for storage. This worked out just as we had planned, very easy to move around when needed and I am very happy with this product. I loved how simple it was to put together, easy instructions, and the durability and functionality of it.
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Reviewed in the United States on December 29, 2024
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robert ferrell
Carnegie, US
★★★★★ 5
Good
Color: Black, Size: 6 Panel
Love it , just what so needed , easy to put together (some what ) …
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Reviewed in the United States on May 16, 2026
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Crimm
Port Orchard, US
★★★★★ 3
Decent for the price. Instructions suck but most people should be able to figure it out. More below.
Color: Black, Size: 6 Panel, Color: Black, Size: 6 Panel
SUMMARY: 3 stars from me because it's firmly average. It's fine for the price. Assembly and materials are alright but I can see some caveats depending on your circumstances. Assembly instructions do a subpar job of pointing out some details. ASSEMBLY INSTRUCTIONS: Maybe it's because I'm autistic and/or building model kits and assembling stuff is my jam, but I honestly thought people were exaggerating when they were complaining about the instructions and I'd be able to flex my ~superior assembly skills.~ I was wrong! These instructions genuinely suck, and whoever is responsible for making them should be ashamed. The instructions do a poor job of calling out some details regarding orientation of parts, and some of the images do not actually match the physical parts. For example, it does not really outline the assembly of the end panels clearly, and I can see someone accidentally using the wrong poles. I've drawn over a photo to show what you should do to try and make it clearer. Additionally, the manual shows a flathead screw for bolting the feet into position, but the actual screw is not a flathead. It also does not point out the counterbore, so if you aren't paying attention you may put the foot pads onto the wrong side of the foot. It's also missing the fact that you need to use another one of the plastic pieces when you finish assembling a panel. ACTUAL ASSEMBLY & MATERIALS: To their credit, all of my bags were clearly labeled. The assembly process wasn't difficult. It's mostly just tedious and requires a fair amount of space. I was able to assemble it by myself without any real difficulty. However, the way it's assembled means two things. One, the fabric parts aren't removable without disassembly. So if you want to use this in an environment where they would require cleaning, I would seriously recommend looking for another option. Or, you could buy this just to use the frame pieces and then somehow buy or make your own fabric pieces designed to be removable with velcro or something. Two, because of the materials I really don't have a lot of faith in this thing surviving disassembly and reassembly. Like a lot of sorta-cheap-but-convenient furniture, it uses those spring-button connections and plastic inserts with self-tapping screws. Those things are not really meant to be disassembled and rethreaded. It also relies a lot on the tension of the poles and the fabric to keep everything rigid and squared, which I think puts a lot of pressure on the aforementioned buttons, plastic inserts, and the hollow metal rods. So I feel like that will also cause issues with disassembly and reassembly. Basically once this thing is assembled, it's not really meant to be disassembled. The best you can do is spot-clean the fabric if you need to. Speaking of the fabric, I didn't see any labels on them or anything in the manual that says what they are, but they feel like some kind of polyester. They generate static electricity pretty easily, and pet hair and debris sticks easily. So that's another downside of them not being easily removable. For the most part it does seem pretty stable. The poles seem to be pretty uniform in length so they're all making contact with my floor. Obviously this isn't structural so it shouldn't be supporting anything, but the two main feet seem to be doing fine with keeping this thing upright. CLOSING THOUGHTS: Really, it's fine for what it is, but it could be better in a lot of little ways and the substandard quality of the instructions just seems unprofessional to me, which is why I'm being so harsh with my rating. Depending on your needs and environment you may want to consider a different option. Preferably one that is made to be disassembled with better materials, and/or one with fabric pieces made to be removed easily.
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Reviewed in the United States on May 28, 2023

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