How much Potassium Phosphate needed for 4 feet planted tank?

[Filet-O-Fish]

Not necessary. If you happen to read the EI document (refer to attached picture taken from EI document), you will find that excess nutrient does not cause algae bloom. This is the most important statement of Estimate Index which many planted tank hobbyist somehow miss it.
Algae is a single cell, it take negligible amount of nutrient to grow. How to out compete algae where its requirement is negligible? There is no way to fight algae by limiting nutrient. A nutrient condition where algae cannot grow, mean neither do plant.

Hi Robert,
So the only way to beat algae is have the plants take in nutrients faster that algae?

BTW I saw your blog.
How do you get the mote carlo to be so thick at the bottom? Mine grew very well ( sometimes like weed and had to trim every 14 days) but the leaves at the bottom would turn yellow or shed. After trimming, new growth will appear.
Would love to know your opinion.
Thanks & Cheers.

[Urban Aquaria]

Yeah, non-limiting nutrients is the main concept of EI dosing, though as mentioned in Tom Barr's write-ups, the conditions that allow excess nutrients not to cause algae blooms also require ample Co2 and a "healthy plant biomass", which supports the right conditions and sufficient plant density to soak up excess nutrients very quickly. In the case of a heavily planted tank, its definitely better to offer unlimited nutrients to all the plants, rather then get mass deficiencies and melting (which would be catastrophic in a tank with so many established plants).

Unfortunately, the algae problems most of us experience are usually at the beginning when the plant density is sparse and Co2 and circulation is still being fine-tuned, add to the fact that many of the new plants we use are still undergoing emersed-to-submersed transition mode, along with various species of algae often already growing on the plants themselves... with so many other factors encouraging algae growth, its already an uphill battle from the start.

Thats one of the reasons why i've always been puzzled when i see a person's newly setup tank containing just a few tiny sprouts of HC, using the same EI calculator default fertilizer amounts as another person with a fully established tank that is already choc full of healthy fast-growing stem plants... no prizes for guessing which chap is complaining about algae issues.

Check out the follow-up article by Tom Barr:

http://www.barrreport.com/forum/barr...nd-other-myths

Makes his EI dosing concepts much clearer to understand.

[aza]

Hi UA,
I'm dosing the liquid form of Potassium Nitrate from Dr.Malik. For a tank to have 20ppm for No3, how much ml of this liquid do I dose for 1 week. Kindly inform. Thanks.

I can't seem to find this product on the Ecocity website. Anyone knows why? A quick search also yields nothing...