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Old 10-13-2005, 01:58 AM   #1
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Cheato won't grow

Hi,

My cheato in refugium won't grow. I bought them a month ago and it's still the same. What should I do? Add calcium?
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Old 10-13-2005, 05:47 AM   #2
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that is the ussual answer but I would test for it first.
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Old 10-13-2005, 08:09 AM   #3
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What kinda fuge and light? How long is it on?
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Old 10-13-2005, 09:16 AM   #4
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why add calcium?

I would suspect it to be a lighting issue.
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Old 10-15-2005, 03:08 AM   #5
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I'm using a 6400K 20W light bulb(very white color) and about 8 hours a day. Hours are too short? What about the light bulb? Should I get a 50/50?

http://www.petco.com/Shop/Product.as...v=216&N=24+123

Thanks!!
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Old 10-15-2005, 07:40 AM   #6
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If your water is very low in nutrents (NO3 and PO4) the cheato will not grow..
The normal light cycle is 12-24 hours on a fuge though (normaly reverse photo-period if
less then 24 hours)
and a daylight spectrium bulb like the one you have is best.. 5000-6700K or so..

My guess is the light isnt on long enough.. your bulb isnt intence enough for the size of
your fuge.. or you dont have enough nutrents for the cheato to grow.
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Old 10-16-2005, 04:30 AM   #7
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You might be right. My nitrate was between 0 or 5ppm(hard to read the test) before I added the cheato. I have a 29gal with a 20 gal refugium. The light bulb might not be intense enough for the cheato. I'll try to increase light hours a little bit more.
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Old 10-16-2005, 04:42 AM   #8
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ive read some theories that it low nutients will make it go sexual.. soooo.. just a word of caution..
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Old 10-16-2005, 06:01 AM   #9
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how aggressively are you skimming? I would actually cut back if you think its a nutrient issue as skimming removes dissolved organics including nitrates and phosphates which are necesary for algae growth. longer lighting should also boost growth but I would also test for calcium just to be sure.
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Old 10-16-2005, 08:41 AM   #10
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Try running your lights 24/7 and add a little iron supplement. Like others have stated, you need a decent nitrate and phosphate load. Kind of a catch 22 since we try so hard to limit them, but the macros need them to grow.

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