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Flourish nitrogen and Phosphorus



I think this came up in conversation here once before, but don't remember if
it generated much response...

Seachem has come out with two products, Flourish nitrogen, and Flourish
Phosphorus.

Here is there description of it:

"Nitrogen is one of the main three macro nutrients (nitrogen, phosphorus,
potassium: NPK) required by plants and can often become the limiting factor
to growth in a ourishing system. Flourish NitrogenT is a concentrated
(15,000 mg/L) blend of nitrogen sources. It provides nitrogen in both the
nitrate form and the plant-preferred ammonium form. However, no free ammonia
is released because the ammonium in Flourish NitrogenT is complexed and
unavailable until utilized by the plants. Flourish NitrogenT also provides
nitrate for those plants that can readily utilize nitrate as well. For
maximum benefit use with Flourish PhosphorusT and Flourish PotassiumT."

Can someone explain this "unavailable" form? Does this mean algae can not
feed on it?

"DIRECTIONS: BEGINNER: Use 0.5-1 mL (dispenser enclosed) for each 80 L (20
gallons*) twice a week. EXPERT: The beginner dose raises nitrogen by the
same degree that 0.45-0.90 mg/L nitrate would. This dose is sufficient to
provide approximately 4 g of growth (dry) or about 20 g (hydrated) over a 1
month period (assuming all other necessary nutrients are provided). For
increased growth use proportionately more. To target a specific nitrogen
increase, dose according to the following formula: 0.25vn=m, where v= volume
of tank in gallons*, n=desired nitrogen increase (for a desired nitrate
increase use a factor of 0.05 instead of 0.25 in the formula) and m=volume
of product to use in mL. For example to raise 20 gallons* by 0.20 mg/L
nitrogen you would use: 0.25*20*0.20=1 mL. (For 2 & 4 L containers, 1 capful
is 10 mL). Guaranteed Analysis: Total Nitrogen (N): 1.5%"

"Phosphorus is one of the main three macro nutrients (nitrogen, phosphorous,
potassium: NPK) required by plants and can often become the limiting factor
to growth in a ourishing system. Flourish PhosphorusT is a safe solution of
potassium phosphate that takes the guess work out phosphate dosing. Unlike
competing products that mix nitrate and phosphate in a fixed ratio, Flourish
PhosphorusT (being nitrate free) allows you to dose phosphorus according to
the needs of your plants without the risk of overdosing nitrates. Likewise,
because Flourish NitrogenT is phosphate free you can use both products
together to target exactly the ideal amounts of each for your system. When
used as directed Flourish PhosphorusT will enhance and accelerate the growth
of aquatic plants without enhancing algae growth. For maximum benefit use
with Flourish NitrogenT and Flourish PotassiumT."

>>When used as directed Flourish PhosphorusT will enhance and accelerate the
growth of aquatic plants without enhancing algae growth.<<

Can someone elaborate on this statement?

DIRECTIONS: BEGINNER: Use 0.5-1 mL (dispenser enclosed) for each 80 L (20
gallons*) once or twice a week. EXPERT: The beginner dose raises phosphorus
by 0.01 mg/L (0.03 mg/L phosphate). The ideal phosphate level will vary from
system to system, but generally ranges from 0.03-1.0 mg/L Use MultiTest:
PhosphateT to monitor phosphate levels. To target a specific phosphate
increase, dose according to the following formula: 0.8vp=m, where v= volume
of tank in gallons*, p=desired phosphate increase and m=volume of product to
use in mL. For example to raise 20 gallons* to 0.1 mg/L phosphate you would
use: 0.8*20*0.1=1.6 mL For 2 & 4 L containers, 1 capful is 10 mL.
Guaranteed Analysis: Available Phosphate (as P2O5): 0.300%, Phosphorus (P):
0.150%

So is anyone using this? Is this a suitable alternative to buying raw
chemicals?

Robert Paul Hudson
www.aquabotanic.com
Join the AB forums, over 400 members