Purposefully Introducing Algae? - The Planted Tank Forum
 
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post #1 of 5 (permalink) Old 08-25-2014, 08:45 AM Thread Starter
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Purposefully Introducing Algae?

Hi:

I am still working on my 29 gallon upper rio negro biotope tank. :-) I have been reading and scouring and maybe um....... a little obsessive.

Anyway, I was debating putting this on this forum or aquascaping.

Has anyone ever purposefully introduced algae to a biotope tank? I have read a lot of research indicating that in the Rio Negro filamentous algae is a very big autotrophic producer for fish such as the cardinal tetra.

This makes me think I need to introduce filamentous algae - for it to be a true biotope anyway.

Has anyone ever purposefully introduced algae? What are the risks?

Do I just walk into the pet store and say, can you please scoop me up some filamentous green algae out of your tanks please? No charge right?

Thanks.

dbw
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post #2 of 5 (permalink) Old 08-25-2014, 03:44 PM
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My fish love to eat algae off the rocks its there favorite thing.
Sorry not familiar with your biotope tank.

125g,75g,50g,40g,27g,10g
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post #3 of 5 (permalink) Old 08-25-2014, 04:04 PM
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And I have toyed with the idea of creating a scaped tanked using primarily algae.
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post #4 of 5 (permalink) Old 08-25-2014, 04:56 PM
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I think both Cladophora and Hair algae fall into that category. Would you know if this is actually true ? Most of my experience is with Cladophora and it only takes lower end of high light to grow. I do see a cut off point of somewhere about 70 PAR which it gets more green above that and @ about 100 PAR it gets Oxygen bubbles trapped in it showing it's growing faster. I mean it's the same piece of algae at the same spot with just higher or lower light so those bubbles would be there all the time if it weren't
caused by the light difference.
Now Hair algae doesn't necessarilly need the 100 Par but does much better at that level.
I find that the actual main factor for Hair algae is lack of current.
It is a very find delicate type of algae and just works better in less current.
Not having seen any pictures of the river aria where you mentioned, I'd give odds that the fish in question live in less than 18" of water, but not too shallow so from 12" to 18" generally and back towards the edges of that river where the water current is much slower than out in the open. An excelent breeding grounds for hair algae.
This would be the Cladophora on the bottom and back wall and the wood. It is the piece on the top end of the wood that I was referring to about the bubbles.
https://www.plantedtank.net/forums/pi...ictureid=63346
This top view picture shows a little hair algae. The current goes to the left out from where the bubbles are coming from and to that end, then to the front and across to the right end along the front. This causes almost no current at that back part in front of where the bubbles are coming from. See what I mean by liking where there is no current ? That small patch at the spot where you see the air line dissapear. Just below there.
https://www.plantedtank.net/forums/pi...ictureid=43393
Since I "cultivate" these I can grow them at will. Controling them may be another story though. But it's a fairly simple matter of raising the light in an enclosed aria so it will confine it(more or less) depending on how well enclosed that aria is or I likely should say how well that you shade that light off of the rest of the tank.

The shortest distance between any two points is a straight line...in the opposite direction...
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post #5 of 5 (permalink) Old 08-25-2014, 05:07 PM
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On the window side of my 55 gallon grew a large mat of cladophora algae, enough to cover the bottom of a 2-3 gallon tank. It can be done! Lol

But it can go crazy. In one of my other tanks it breaks off into small pieces easily and forms random wads of itself pretty much everywhere.
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