View Full Version : java moss not doing to much

04-02-2008, 03:37 AM
so i put some java moss on a fake rock and some driftwood about a month ago. the moss on the driftwood is better than the rock and the moss on the rock hasn't changed much in the last month.

my water parameters are good, but my water is quite hard about 250gdh or so and the alkalinity is stable at about 8.2. could this be the reason for the slow growth?

Are there any ways to speed it up?

thanks, not a huge issue but i was just curious.


04-02-2008, 03:39 AM
the KH shouldn't be a problem. Java moss will grow in almost any conditions, including mild brackish. How much light is on the tank?

04-02-2008, 03:43 AM
about 2 watts per gallon

04-02-2008, 03:45 AM
Maybe lack of nutrients or Co2

04-02-2008, 03:47 AM
i wasnt sure thats my only plant in the tank

04-02-2008, 03:50 AM
about 1/2" of new growth per month is very good for java

04-02-2008, 03:52 AM
yah, but it hasn't really even "perked up" since ive lashed it down

04-02-2008, 03:54 AM
Java sometimes takes a while to acclimate to the tank, if it has good color it will grow. May need more nutrients.
In my shrimp tanks with no fertz, about 1/4" per month is all I get, but it is fuller than moss in other tanks that grows a little faster

04-02-2008, 03:55 AM
what kind of nutrients? the color is good though

sorry im ignorant when it comes to plants

doug z
04-02-2008, 04:21 AM
Nutrients that are provided with fertilizer, preferably designed specifically for aquarium use, like Seachem Flourish, and Seachem Flourish Excel, which is liquid C02..

04-02-2008, 04:31 AM
I have java moss in a ten gallon with common light, no co2, and only add florapride and 1 plantabbs once a month and it grows a good 3/4" plus in a month. I am constantly thinning it out. I have it in all my tanks now. About 6 months ago I started with a golf ball size portion of it. Just last week I took two baseball size clumps out of the ten gallon.

04-02-2008, 04:37 AM
In a low tech tank (no added fertilizer, no CO2, no extreme lighting) Java moss will grow but not super fast. I experienced 3 different cases:

a) My 10G tank is against an inside wall in a room whose windows face north.
1.8W/gal lighting on for 5.5 hours a day and 74F. The Java moss tied to my rock took 6 months before it started to grow noticeably. However, it was always green and nothing died (turns brown and threadlike). It is now 10 months in and I have only had to trim it once.

b) I also have some java moss in a jar of water by a window (lot's of daylight,no direct sun). This moss grows noticeably faster and looks lighter green. It is kind of my Java moss farm. I'd say it doubles in mass every 2 months.

c) At work I had a vase on my desk with Java moss in it. My cubicle is lit by energy saving fluorescent tubes and the lights turn off automatically when everyone goes home. The moss there slowly died: strands started to turn brown and became little brown threads, (for a mental image of this, think about how people get white hair).

Main point. If your moss stays green, don't sweat it and just let it grow.
If it starts to turn brown then it is dying.

04-02-2008, 05:59 AM
My Java Moss has always seemed to do fairly well. I have about 3WPG in my 10G, and it does great. No CO2 injection, nothing fancy or special. Its a deep emerald green, and it has very bright, light green growing tips so I know its growing. Its also getting slowly, visibly bigger. The tank does get alittle direct sun for maybe an hour a day at most, and the room is fairly bright with 1 south and 1 west facing window.

But in all the years I have had Java Moss in tanks, Ive never done anything special for it or to it. It just seems to do fine on its own. Then again, everyone that knows me says I have a "green body". I prefer to call it a super green thumb, or hand even, but I have some "magic touch" w/ plants, and they almost always THRIVE for me. I guess maybe that transfers over to aquatic plants too. I only had a couple of aquatic plants croak on me. I cant remember what they were, but their leaves just kind of "melted" away.

Anyway, not sure what help i can offer you here, other than be patient, java moss tends to be a slower grower, especially in lower light conditions. Most plants labled as "low light" applied to plants is somewhat of a misnomer. Most plants that are tagged this way are not ACTUALLY low light preferring. The term "low light" really means that the plant will tolerate, and survive in lower light conditions. That does not mean those conditions are ideal for the plant, and that they will grow and thrive in those conditions. However, they likely will not die o n you either.

04-02-2008, 06:03 AM
is it true that java moss thrives in high nitrate biotype?

04-02-2008, 02:00 PM
You're right DC. I have Java in a 10g with moderate lighting and it doubles in size every month. I recently took out 2 very large portions and threw them in my Silver Dollar tank. Something that I observed with Java is that in hard water conditions it seems to be a darker green then in soft water and it tends to be somewhat slower growing.

04-02-2008, 02:26 PM
Java moss is a great plant,tough, adaptable, and easy to grow.Interesting how its color, growth rate, and structure varies with different conditions.
I'm pulling most of mine out now and replacing with fissiden fontanusthumbs2: I really like the look, if only it wasn't so expensive

04-02-2008, 02:53 PM
Java moss is a great plant,tough, adaptable, and easy to grow.Interesting how its color, growth rate, and structure varies with different conditions.
I'm pulling most of mine out now and replacing with fissiden fontanusthumbs2: I really like the look, if only it wasn't so expensive

Im jealous! You have FLAME moss!!!!! I love that stuff and I cant find it ANYWHERE! Im not one that usually will order plants over the internet either. Just never seemed like a good idea to me. LOL!

04-02-2008, 04:34 PM
ok thanks everyone

Lady Hobbs
04-06-2008, 01:59 PM
I had trouble with moss due to so much algae creeping up on it and it eventaully began dying off. I now have a new batch, put it in my shrimp tank and it is going very, very nicely. It is an algae catcher but I found something to keep it clean really makes a big difference in keeping moss. I wouldn't recommend it for a new setup for that reason.