Lighting And Plants Help - The Planted Tank Forum
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post #1 of 6 (permalink) Old 05-31-2012, 04:32 PM Thread Starter
Algae Grower
Join Date: May 2012
Location: India
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Exclamation Lighting And Plants Help

Hey guys, I need your help. I'm getting a 20 gallon (30" x 12" x 12"). The problem is I am a busy man, and I have to stay out of home 2 weeks a month or more. The plants grow rapidly, especially I have horrible experiences with Java moss, Vallisneria etc. They grow very quickly and if not trimmed for two weeks, they occupy the whole tank! I have no other whom I rely to trim (My mom can feed and etc but trimming is not her cup of tea). So I've thought of getting some slow growing plants. I've chosen pellia and brazillian micro sword for foreground. Help me with slow growing plants for background, (foreground suggestions are also welcome). One of my friends told me that blue light helps to resist extra growth and it looks better. should I use blue light? If I do, what type of light and of what power? If I do not, which kind of lighting will be suitable? Also, if I use blue light, which fishes (and how many) could be kept? Thanks in advance.
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post #2 of 6 (permalink) Old 05-31-2012, 04:48 PM
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Hi srutinath,

I would recommend using the various java fern (Microsorum pteropus) cultivars, Cryptocoryne, and Anubias species which are all much slower growing than stem plants.

This 30 gallon has mostly java ferns and Cryptocorynes

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post #3 of 6 (permalink) Old 06-03-2012, 03:14 PM Thread Starter
Algae Grower
Join Date: May 2012
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What about lighting?
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post #4 of 6 (permalink) Old 06-03-2012, 03:25 PM
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Various erios and toninas, that's the direction I've been going for slower growth. On my 20 long I got one of the Hagen GLO T5HO 24 watt that I've ended up raising about a foot off of my tank as it was just too much light. It is a single bulb so I would not suggest going any more than that or it will have to be miles above the tank. I started with it 4" above the tank and could not inject enough co2 without killing my fish and keeping algae at bay. Best of luck!
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post #5 of 6 (permalink) Old 06-03-2012, 04:06 PM
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The lighting is the driving force behind your tank. If you want reduced growth, reduce the lighting. Use a couple T5 NO's instead of HO. I have a pair of 20" NO with no reflector sitting about 4 or 5 inches from the top of a 20 long and that gives me good light to grow swords, blyxa, moss, and vals.

What I have noticed is that adequate CO2 concentrations enable you to succeed with less lighting and thus less growth demands. You need to get less light and have a photo period of about 8 hours. You could probably be alright with 7.
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post #6 of 6 (permalink) Old 06-04-2012, 12:56 PM Thread Starter
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does blue light help?
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20 gallon, background, blue light, lighting, slow grow

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