who here thinks high nutrient levels CAUSE algae? - Page 3 - Tropical Fish Keeping - Aquarium fish care and resources
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post #21 of 22 Old 10-16-2009, 02:53 PM
Originally Posted by Byron View Post
I did not say that high nitrtates are caused by high nutrients; nitrates of 50ppm may have nothing whatever to do with nutrients....
Since when were nitrates not nutrients? They are a major source of N. A lot of us add N via Potassium nitrate to our tanks, as per EI, PPS pro, Redfield ratio, TPN+......

Byron, you like to quote Diana Walstad a lot. If you wish, I could direct you to a couple of forums where she is a member, and you can speak to her directly.

Jack, I suspect the allelopathy chapter in her book is one that she regrets writing.

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post #22 of 22 Old 10-16-2009, 07:38 PM Thread Starter
Originally Posted by Byron View Post
If you (baron von bubba) have scientific evidence that algae can grow without nutrients and light, I'm sure we'd all be interested in seeing it. Ms. Walstad has scientific studies to back up what she says on botannical matters. I may not always agree with her opinions on substrate, but I cannot argue with her scientific evidence, and I challenge you or anyone else to find scientific evidence that refutes hers.

If I had 50ppm nitrate in my tank, I'd be finding out why and resolving it rather than worrying about algae and taking things out of context. I did not say that high nitrtates are caused by high nutrients; nitrates of 50ppm may have nothing whatever to do with nutrients, and nutrients are absolutely required by all plants including algae in order to live, which nutrients are obviously missing in your tank since you have no algae.
DW's book is fairly old now, other ppl have continued to experiment and collect evidence also.

as you said in another thread some people will always believe the world is flat!
changing an old way of thinking, is admitting that one may have not been originally totally correct in their believes, it can be a hard thing to admit!
so i understand this. i used to think high nutrients cause algae?

tom barr being one of those sources for info, his site is quite something and the cash he has thrown at equipment to test things out, is far beyond the average aquarists capabilities

as for the bold bit above,
its the total opposite, i have ALL nutrients in abundance. along with high lighting!
if this wasnt the case i would likely get algae as soon as any one nutrient became limited.

and i'm not sure where i say algae can grow without light and nutreints...........
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