The Planted Tank Forum - View Single Post - fert noob questions
View Single Post
post #2 of (permalink) Old 11-26-2012, 05:41 AM
Darkblade48's Avatar
Join Date: Jan 2008
Location: Toronto/Singapore
Posts: 10,716
Potassium phosphate contains both potassium and phosphate. However, people tend to try to keep phosphates lower to limit algae (though it has been proven it is an imbalance between it and nitrates that ultimately causes algae), so dosing just potassium phosphate may not provide enough potassium to plants.

This why other chemicals such as potassium nitrate and potassium sulfate are often used.

Terrestrial fertilizers are not often used because in order to provide nitrogen, they use urea, which will break down to ammonia.

Dosing then becomes a fine balance between providing enough fertilizer for the plants, but too much that it causes ammonia poisoning.


A Primer to Pressurized CO2 and A Primer to Planted Tanks
Eheim Pimp #362 - Eheim 2213 x2, Eheim 2028, Eheim 2217, Eheim surface skimmer and Eheim autofeeder.
Victor Pimp #33 - HPT272-125-350-4M
Darkblade48 is offline  
For the best viewing experience please update your browser to Google Chrome