Bad lighting or is it Non-ideal tank conditions for floating riccia / amazon frogbit
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Old 02-16-2013, 06:22 AM   #1
shrimpzoo
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Bad lighting or is it Non-ideal tank conditions for floating riccia / amazon frogbit


Current lighting: Zoo Med T-8 Flora Sun Max Plant Growth Fluorescent Bulb 24"

My floating riccia and amazon frogbit just turn yellow. My other plants in the tank Java Moss, Peacock Moss, Java Fern, Marimo Balls do decently (although they might just been green because they are very hardy and low requirement).

Amazon frogbit will replicate and spread out but they won't stay green and will always have ugly signs of yellowing decay.

Is it that the lighting isn't good enough for my floating plants or is it that my tank hasn't got the goods to support them.

Thanks for reading. And I also don't dose ferts (though I do have access to seachem flourish and root tabs [1 asian brand from a shop called AquaInspirations and API root tabs)

p.s: if you could recommend a light to support floating riccia and amazon frogbit with what they need lightwise and won't melt my low light plants I would greatly appreciate that as I am looking for an upgrade

Last edited by shrimpzoo; 02-16-2013 at 06:39 AM.. Reason: fert mention
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Old 02-16-2013, 03:44 PM   #2
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Floating plants always have enough light because they are so close to the light. What you lack is fertilizers in the water. The other plants are probably getting most of their nutrients from the substrate. Read http://www.plantedtank.net/forums/sh...ad.php?t=21944 for information about fertilizing.
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Old 02-16-2013, 05:10 PM   #3
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hoppy, could it be too much light for the frogbit? i'm only having frogbit problems in my med/high light tanks
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Old 02-16-2013, 05:12 PM   #4
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More light means more ferts needed.
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Old 02-16-2013, 05:27 PM   #5
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okay, i thought the brown/yellow was that i was 'burning' them from too strong a light .. adding so much ferts already.. but tank is VERY heavy planted
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Here they are http://www.plantedtank.net/forums/al...p?albumid=9625

6 gallon journal
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you can see more photos here the 4 8" cubes are on flicker... will get to their journal at some point (they are fun as they change often)
http://www.flickr.com/photos/laq/


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Old 02-16-2013, 06:35 PM   #6
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Sometimes frogbit and other floating plants will die with too much light and heat.
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Old 02-16-2013, 08:28 PM   #7
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Have you checked the temp at the top of the tank?
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Old 02-16-2013, 08:30 PM   #8
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will do..
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Here they are http://www.plantedtank.net/forums/al...p?albumid=9625

6 gallon journal
http://www.plantedtank.net/forums/sh...208&highlight=


you can see more photos here the 4 8" cubes are on flicker... will get to their journal at some point (they are fun as they change often)
http://www.flickr.com/photos/laq/


webdesign: www.littleowlwebdesign.com
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Old 02-16-2013, 11:24 PM   #9
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I don't know about the science involved but I would swear that I have had a yellowing problem in very high light tanks.

Whether it was excessive light or insufficient nutrients I don't know.
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Old 02-17-2013, 12:56 AM   #10
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The original poster said that he was not fertilizing, other than flourish and root tabs. High light could cause yellowing of plants if all of the nutrients were hogged by a few plants, leaving the others starving.
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Old 02-17-2013, 03:51 PM   #11
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Okay I determined the problem and now applied a fix. Hopefully things will turn out alright.

Thanks for the posts guys.
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