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Topic Review (Newest First)
03-30-2009 10:40 PM
kerokero I believe all of those can be grown above water (Never tried the Bolbitis species but I believe they do in theory). As for water...

Yup, all the javas grow under water, as well as emersed (I use them in humid terrariums as well). Add Phillipine, Red, Needle leaf, and at least one other definate form (a dwarf sized narrow leaf). Just from this one type of fern you have a great variety of sizes and shapes to choose from!

As for the Bolbitus, you might want to check out this thread. The Bolbitis typically seen in the hobby (Bolbitis heudelotti) is happy underwater given the right conditions (water flow, lots of light, and CO2). I don't see the other species around so I can't comment, but I know I'm looking for it for my terrariums, not aquariums Niether is good for low light tanks tho.

None of the Selaginellas are truely aquatic... they like it wet in terrariums (challenging outside humid tanks) but are not IN water, just next to running water. S. willdenowii and a couple other more commonly cultivated species are often incorrectly sold as "aquatic" tanks... they just take a long time to die They spread across substrates, and will scramble across rockes and what not around water, and as long as they are kept on moist substrate with humidity, they will be happy plants. The peacock fern is typically S. unicata, also a bit blue but much smaller (creeps along ground, S. willdenowii grows up tall to around 4ft)

Trichomanes javanicum is a similar case of false advertising. I've had a lot of luck with this filmy fern in nice rainforest terrariums, and they tend to have been "aquatic" rescues that were on the verge of death. "Wet" and "aquatic" do not mean the same thing They are slow growing, just sit the rhizome on top of a substrate (think epiphyte) and keep it humid (be patient!). I believe I've seen a Trichomanes species sold either on here or APC that was supposed to be ok aquatic, but it's rare and I don't really know much about it... and I'm not sure I'd recomend it for a low light tank like Java ferns.

Malay and Thai ferns likely includes the "Java" ferns (the species grows all over that area), as well as Trichomanes species and Selaginella species can also be found in those areas. There are LOTS of ferns from that area, some may be aquatic, many found in wet areas, and a lot are misrepresented and sold as aquatic.

Just not too many low light and aquatic ferns in the hobby. I love low tech low light tanks, and Java fern varieties are a staple. Along with crypts, I'd also recomend most of the aquatic mosses and anubias! There are a number of other specifically low light plants too depending on what you mean by "low".
03-25-2009 06:04 PM
demosthenes bump... has anyone tried to grow any of the underwater? any luck? anyone?
03-25-2009 12:27 AM
FrostyNYC Subswassertang is believed to be a fern gametophyte.
03-24-2009 10:08 PM
demosthenes
Aquatic Fern Info

I have a low light tank that I am trying to fill up with slower-growing plants like ferns and crypts, but I am really confused as to which ferns are actually aquatic or bog plants, or even regular terrestrial plants, or maybe a combination of the three. Here are the ferns that I know of:

Java Ferns (Microsorium Pteropus)
Variants: Windelov, Trident, Narrow Leaf, Tropica, etc
Can obviously be grown indefinitely underwater, everyone has had some java ferns at some point.

African Water Fern (Bolbitis Heudelotti)
No variants that I know of...
Can be grown indefinitely underwater, but I don't konw about emersed growth.

El Niņo Fern (Bolbitis Heteroclita)
No variants that I know of...
Has anyone grown this underwater? I thought that this was a fully aquatic species until recently, but now I just have no idea.

Peacock Fern (selaginella willdenowii)
No variants that I know of...
I have no idea how this should be grown. CAM647 has some in his tank, but I do not know how they are doing, and I am attempting to grow them emersed, but they haven't grown at all in the 5 days that i've had them. I google image searched this plant, and it showed it as a blue fern being grown in a pot in someone's kitchen. Can this be grown normally in a pot? Should this be grown underwater or above water?
Also, Google Images comes up with a plant that looks nothing like what i bought at Petco labelled as "Peacock Fern (Selaginella Willdenowii)" when you search for the common or latin names. Mine seems to be something totally different. What is the actual plant?

Borneo Fern (Trichomanes javanicum)
No variants that I know of...
I know that this can not be grown underwater, only emersed. I have it growing in my paludarium right now, but I'm not sure if I should be doing anything special to be taking care of it.

What other types of ferns are there that can be grown fully submerged and actually survive? I have heard something about a malayan and thai ferns, but when I searched for those on google images, all that came up was pictures of naked malaysian and thai women.

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