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#1
12-04-2008, 01:48 AM
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Dude I keep fresh water planted tanks for 12 years and have scientific facts to prove me right. Show me your data,you seriouslly believe that overstocking a tank will cure cyano? better yet do you believe this is best way to go about it? Believe me if I didnt know what I was talking about I wouldnt say a damn thing.
Are you saying im wrong? Last edited by dabandit; 12-04-2008 at 01:50 AM. |
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#2
12-04-2008, 01:58 AM
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dabandit, while i agree that people who have no idea what they are talking about shouldn't talk, you are currently shooting yourself in the foot. There are quite a few cyanobacteria species that are known as nitrogen fixers. At low levels of nitrogen (at normal phosphorus levels), usually in the form of nitrate for obvious reasons, nitrogen fixers outcompete other algal species in natural settings. This is what Ive learned from my university limnology class... there's plenty of scientific papers detailing this mechanism if you're willing to look for it. Granted that in captive systems, all bets are off, because our systems only emulate nature in the barest of degrees. is the best way to stock more (but not overstock... i dont think that's what he meant)? maybe, maybe not, but there's merit to it at least.
edit: "are you saying im wrong?" now who's the expert?  Last edited by justinl; 12-04-2008 at 02:00 AM. |
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#3
12-04-2008, 05:57 AM
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Interesting. OK, just for fun and my self learning, I did some Googling. http://www.environmentalleverage.com...nobacteria.htm "The presence of large amounts of tetrads or Cyanobacteria in a wastewater treatment system can indicate a severe nutrient deficiency, typically nitrogen." "Tetrads and cyanobacteria are usually found in environments where there are low levels of nitrogen present. " " Usually increasing nitrogen levels in the influent often causes them to disappear quite quickly as opposed to adding high levels of polymer to try to drop them out. " "Low nutrient levels and high BOD are usually the cause of tetrads and cyanobacteria. Ammonia should be increased in the influent and usually with a little bit of time they disappear." http://www.pubmedcentral.nih.gov/art...?artid=1151820 "Nitrate and Phosphate Affect Cultivability of Cyanobacteria from Environments with Low Nutrient Levels Nitrate and phosphate concentrations higher than those found in the natural environment slowed down growth of two strains of non-bloom-forming, phycoerythrin-rich Synechococcus spp. isolated from mesotrophic subalpine lakes. For both strains, high initial nitrate and phosphate concentrations delayed growth. " http://gwapa.org/wordpress/articles/...-aquarium/#bga "Causes: Low nitrates - Usually present when all of the nitrogen/nitrate has been removed from the water column. While this is a triggering condition, it is also exacerbated by the bacteria itself using any remaining nitrogen. Cures: Increase nitrates - Dose nitrates until the concentration reaches ~5ppm. " http://www.theplantedtank.co.uk/algae.htm "Cause Often caused by very low nitrates. It is fairly common to have it growing in the substrate against the front glass from where it can spread. " "Removal A blackout is the best method for this. Clean out as much of the algae as you can and do a 30 to 50% water change. If your nitrates are low then add some potassium nitrate to get levels to 20ppm. " http://www.aquarium-pond-answers.com...aquariums.html "To protect the Nitrogenase from oxygen, many nitrogen-capturing Cyanobacteria (usually of the filamentous variety) have developed special nitrogen-fixing cells called Heterocysts encased in thickened cell walls. Because of this ability, low nitrate levels are generally not the key to stopping this plague." http://www.aquatic-eden.com/2006/10/...algae-bga.html "Causes: Low nitrate levels (NO3), "dead spots" of low water circulation, organic waste build-up Prevention: Dose nitrates (NO3), add powerheads to aid circulation, frequent water changes and do not over-feed" "Since it can fix its own nitrogen, a lack of nitrates gives it an advantage over plants. If nitrates are not high enough, it will quickly find a dead spot to start a colony and begin growing extremely rapidly." http://www.bioremediate.com/algae.htm "Nitrogen fixation is the process of converting unusable nitrogen (atmospheric nitrogen) into usable nitrogen (ammonia). This characteristic allows these species to exist in areas where low nitrogen availability inhibits growth. Therefore, under phosphorus-rich conditions, when nitrogen may be limited, blue-green cyanobacteria algae have a competitive advantage because they can utilize ("fix") nitrogen directly. " Last edited by Samw; 12-04-2008 at 09:14 AM. |
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#4
12-04-2008, 01:59 AM
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#5
12-04-2008, 03:39 AM
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It sounds like you let the person know what you thought on the other site (which is fine) but now it seems like you're trying to get others on this forum to validate your opinion. Everyone has different opinions and everyone is entitled to their opinion. It's one thing to politely state your opinion but it's another to try to force your opinion on others. While it's nice to be validated not everyone is going to agree with what you have to say. Please be willing to except that fact and allow yourself to move on.
__________________
One more fish should be ok?, right!!!  - Laurie
Last edited by fishoholic; 12-04-2008 at 03:42 AM. |
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#6
12-04-2008, 03:51 AM
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Sorry if my post was a little obnoxious, sometimes when I am tired and have a headache I can be an ornery bastard. Now that I have had my workout I feel more human.
I don't have any science to back me up. I have advice from experts and personal experience. In the past whenever I have had cyanobacteria issues (in a freshwater planted tank) one of the main causes has been low to zero nitrates and the cure has been either supplement nitrates or increase feeding. Depending on the light and CO2 levels, a nitrate level of 5 ppm to 20 ppm is the general consensus target. The other major contributor to freshwater cyanobacteria from my experience has been low flow. Erythromycin is a quick cure but the cyano comes back if the root causes (low nitrate and stagnant flow areas) are not addressed. Most experienced plant people, and in particular Tom Barr who is generally recognized as a FW plant expert, do not feel that elevated nitrates or elevated phosphates will cause algae, as long as light, CO2, flow, macronutrients and micronutrients are all available. That has been my experience too. Anyway the fundamental issue is, on a discussion forum people should discuss, if someone wants to claim this or that additive will cure algae, fine with me, discuss it and debate it and in the end we will find the truth, with a lot of zigs and zags along the way.
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120 gallon sps/anemones/LPS reef since 2004 Apex controller 8 x 54 watt T5 PowerModule Herbie's silent overflow system Jebao DC 12000 return pump Jecod CP-40 Cross-flow circulation device Mini Bubble King 180 Barr Aquatics calcium reactor Bucket fuge |
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#7
12-04-2008, 03:56 AM
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__________________
One more fish should be ok?, right!!! - Laurie
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#8
12-04-2008, 04:56 AM
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The 12 year old: Are you calling me a liar? Other person: I don't know... are you calling me a liar? The 12 year old: I wouldn't say anything if I didn't think it was right Other Person: Ditto The 12 year old: I have scientific facts Other person: Ditto The 12 year old: Show me your facts Other person: Ditto I mean if you want to argue at the very least try and go about it in a more productive way... just because you threaten someone with the terrible idea of calling you a liar your point isn't anymore proven. And if you want to get technical... when people disagree they are technically calling you a liar and the are calling you wrong... get over it and carry on the discussion so you, or possibly they, can learn something. |
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#9
12-04-2008, 05:14 PM
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P.S I'm a grown man lol |
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#10
12-04-2008, 06:31 PM
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I LOVE IT. hmmm what oh i have been swimming in raw sewage all day "I LOVE IT"
LT frank Drebin. 
__________________
72 Gallon Bowfront Reef.. Hardware:2x250w Luminex Elite HQI Reflectors (Phoenix Hexarc Bulbs), Galaxy 2x250w Electronic ballast, Euroreef 130 Skimmer, Sedra KSP 7000 Retern... Live Stock: Pair of Hawaiian Flame Wrasse, Leopard Wrasse, Pink Streaked Wrasse, Pair True Percula Clowns, Potters Angel, African Flameback Angel, Orange Fin Tomini Tang, Yellow Assessor, Tailspot Blenny, Purple Firefish.. 45 G FW Asain Barb Community tank. |
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