[turtlehead]

http://www.gregwatson.com/proddetail.asp?prod=PMDDPre-Mix&cat=8 is that all three macros together? I'm currently dosing flourish and iron. if that's not right where can I get an all in one macro?

 

[chubasco]

Hi Turtlehead,
That is all 3 macros plus the traces (Plantex-B) in one whole shmear. I like to dose macros separately from the traces to better control ferting. You can
order the macros in separate packages, then use the Plantex-B (or TMG etc)
for your traces. YMMV, always, :smile:

Bill

 

[turtlehead]

well im currently dosing flourish for te

 

[bharada]

It's missing P (in the N-P-K) since the PMDD is based on a Phosphorus limited dosing.

Most do not recommend an all-in-one mixture since you can't make any adjustments with all the ingredients mixed together. The dynamics of a planted tank (especially a high light/tech tank) often requires you to tinker with your macro dosing levels so you want to have the N-P-K sources separated.

It takes marginally longer to dose, but allows for much more flexibility.

 

[John P.]

T-head--Bill's right. Get 1 lb. of each to start with. Or better yet, get 2 lbs of KNO3 and 1 lb of P & 1 lb of K.

My tank, for example, seems to be going light on the Nitrates right now (probably due to my Cherry Shrimp population explosion) and "normal" on the Phosophates. I'm also not dosing K separately because I'm trying to see how it affects my hair algae.

If I bought the all-in-one, I couldn't be this adaptive. See?

 

[turtlehead]

I see, I want it to be convient though and not too messy, can I mix it up and store it? what do you guys think for ADA brighty k lights?

 

[chubasco]

Yes, it is missing the mono potassium phosphate for the "P." Sorry, my bad.
Depending on the composition of your water, you may not have to dose with
Potassium Sulfate...still, it is nice to have around, just in case ;-)

Bill Ruyle

 

[turtlehead]

do I actually even need nkp since its provided in fish waste and food? and flourish has some of it?
I have riccia and hairgrass, dosing 1.5ml of flourish every monday and saturday, 1ml of iron wednesday
100% tap water

 

[bharada]

I see, I want it to be convient though and not too messy, can I mix it up and store it? what do you guys think for ADA brighty k lights?

You can dry dose all your macros. Just use the Fertilator to figure out what the amount is for the desired dosage for each. Order a set of mini measuring spoons from Greg when you order the macros.

 

[bharada]

do I actually even need nkp since its provided in fish waste and food? and flourish has some of it?
I have riccia and hairgrass, dosing 1.5ml of flourish every monday and saturday, 1ml of iron wednesday
100% tap water

Whether you need to dose macros is totally dependant on your tank setup. Low light with slow growing plant should be sustainable with just fish waste. Get above 2.5 wpg and you'll start to need CO2 and macro dosing (as well as the micros from Flourish/TMG/CSM+B).

With you growing hairgrass, it leads me to believe you're getting into a higher-light setup which will need supplemental dosing.

 

[turtlehead]

4 wpg 10 gallon but flourish has a good amount of nkp

 

[turtlehead]

decided to go the seachem liquid npk route for now
4.0 wpg in my 10 g and have c02 at 17ppm do i need macros or dose flourish provide some already?
I does 1.5 ml on mondays and saturday, 1ml of iron on wednesday.
Do I really need to buy all three of the nkp or uping the light to 4wpg doesn't seem like I will need it?
Is it time to up c02 to aroud 20ppm diy?
using 100% tap water.
I'm so lost when it comes to nkp...

 

[bharada]

Actually, Flourish has very little in the way of N-P-K as it's a trace element (micro) supplement. Here's what the Seachem site says...

Flourish™ is a comprehensive plant supplement for the natural freshwater aquarium. It contains a rich assortment of important micro elements, trace elements and other nutrients. These include calcium, magnesium, iron and other important elements that have been shown to be beneficial to aquatic plants. For macro element (NPK) fertilization, use Flourish Nitrogen™, Flourish Phosphorus™ or Flourish Potassium™ as needed.

However, going the Flourish-line route will get expensive which is why ordering dry chemical ferts from gregwatson.com is so highly recommended.

Riccia is a N hog so unless you grossly overfeed your fish you will need to supplement macros.

 

[BigFoot]

I agree the seachem way does get expensive. I have a 75 gal tank with 3 wpg. . I have watched i suck down 250 ml bottle of nitrogen last month. So i had to put in a order with greg it should be here any day now i hope cuz i am running out.

 

[turtlehead]

so what do I really need? do I need all three nkp?

 

[bharada]

Order 1lb each of KN03, KH2PO4 and K2SO4. You could probably live without the K2SO4, but you might as well have it just in case, and it's better to order it with a bunch of other stuff to save on shipping.

 

[turtlehead]

KN03 is nitrogen right
KH2PO4 is potassium right
and the last one is phosphate right?

 

[turtlehead]

so which one do I need not need or do I need all three NPK?

I'm just doing to test out seachem first because I like liquid fert, I'll then switch over to gregwatson and because I only have a 10 g.

 

[bharada]

KN03 is your N source from Nitrate (NO3)
KH2PO4 is your Phosphorus source from Phosphate (PO4)
K2SO4 is your Potassium source

Like I said above, you may very well be fine for K just dosing the KN03 and KH2PO4, but the cost of the K2SO4 is minimal, and there aren't too many sources for it unless you live in farm country.

With your 10g tank a pound of each will last you quite a while. And you can always mix up liquid batches for each macro if you want. I do just that and have a printed chart that I can refer to get ml/ppm amount for each of my tanks.

The only thing that's generally discouraged is mixing up a master N-P-K solution since once you do you're stuck with dosing whatever ratio that solution is mixed at.

 

[turtlehead]

so I don't really need Phosphate