02-20-2012, 03:02 PM
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I second what has been mentioned by both members previously. This is not a particularly fast-growing plant, so getting it to grow as fast as you have indicated already is perhaps going to be it.
I would also mention that this is a low-light plant, it often browns under direct light that is too bright, so a cover of floating plants helps. And this will also serve to prevent the algae issues Inga mentioned.
And, Java Moss frequently all but stops growing for a period if it is exposed to fluctuating conditions, such as light changes, nutrients, or water hardness and pH. Being a moss, it is unable to use bicarbonates as a source of carbon, so it relies solely on CO2 for carbon, and thus will always do better in softer slightly acidic water.
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