pps pro and seachem together? - The Planted Tank Forum
Old 10-23-2015, 12:33 PM Thread Starter
Algae Grower

Join Date: Oct 2015
Location: columbus,ohio
Posts: 38
pps pro and seachem together?

sorry if this has been answered already...i`m using the pps pro dosing method but i have a bottle of seachems iron and potasium left over from before i switched to pps pro.can i use whats left of these two bottles along with the pps pro dosing? maybe on a small limited amount.im sure the pps pro has everything i need i just hate to waste these big bottles (but i will if need be) i dont want to risk over dosing anything so i thought i`d ask you guys and gals.thanks pauly
pauly is offline

Old 10-23-2015, 09:01 PM
Planted Tank Enthusiast

Join Date: May 2013
Location: California
Posts: 584
I feel your pain. I have a bottle of Excel I don't need since the GLA CO2 system arrived, and a bottle of Flourish that has been replaced by PPS. Not sure what to do with them.

I suspect that adding iron and potassium to a PPS regimine would throw things out of balance.
Argus is offline
Old 10-24-2015, 04:36 PM
Planted Tank Guru

Join Date: Jun 2012
Location: Gainesville, FL
Posts: 2,105
Seachem's fertilizers are the same as dry fertilizers except they have water. So yes you can use them.

Instead of using all K2SO4 for your solution use the Flourish potassium.

Warning: I included my math lol

Flourish Potassium has 48mg/ml of potassium

One mg of K2SO4 contains 0.448736 mg of potassium.

So lets say you want 1 liter of PPS solution with 1ml dosing 10 gallons...

According to the PPS-Pro mixture located here you add 59 grams of K2SO4 to 1 liter.

Plug the numbers in,

59,000 (59 grams) * 0.448736 (1mg of K2SO4) = 26,475.424 mg of potassium

So let's say you have 139ml of Flourish potassium left.

139 * 48 = 6,672mg of potassium

That means you need to add 19803.424 mg more of potassium via K2SO4.

19803.424 / 0.448736 = 44,131.57 mg of K2SO4

So you simply add 139ml of Flourish Potassium and 44 grams of K2SO4 to the one liter bottle.

As far as the iron is concerned that's really not feasible since Plantex has iron in the mix. You can however dose both. The iron in Plantex and Flourish are different. The iron in Flourish is gluconate which means it does not last as long in water but is more available to plants. So the addition of both will provide a better source than Plantex alone.

One PPS dose of Plantex would provide 0.14 ppm of iron according to the link above. Adding 1/3 of that via Flourish iron would be a good balance.

Plantex has 0.0653mg of iron per mg.

Flourish iron has 10mg/ml of iron.

80,000 (80 grams) * 0.0653mg = 5,224 mg of iron

5,224 / 3 (to get one third) = 1741.3 mg of iron

So we need to add 1743.3 mg of iron via Flourish to our 1 liter bottle.

1743.3 / 10 = 174.33 ml of Flourish iron

@Argus

Your problem is much easier. Just use the Flourish comprehensive at a rate of 1.2 ml per 10 gallons instead of the PPS-Pro micro mix.
Zorfox is offline

Old 10-24-2015, 05:12 PM
Planted Tank Enthusiast

Join Date: May 2013
Location: California
Posts: 584
Quote:
Originally Posted by Zorfox View Post
@Argus

Your problem is much easier. Just use the Flourish comprehensive at a rate of 1.2 ml per 10 gallons instead of the PPS-Pro micro mix.
Thanks.
Argus is offline
Old 10-25-2015, 11:05 AM Thread Starter
Algae Grower

Join Date: Oct 2015
Location: columbus,ohio
Posts: 38
wow nice explanation thanks a bunch.
pauly is offline
Old 10-25-2015, 02:48 PM
Wannabe Guru

Join Date: Sep 2015
Location: KL, Malaysia
Posts: 1,926
Quote:
Originally Posted by Zorfox View Post
Warning: I included my math lol
I love seeing your molar equations haha! Makes me think I'm in school!

On another note, people with some chemistry knowledge (like yourself) can easily manipulate commercial fertilisers to suit their dosing regime, because they give us concentrations etc., I'm just a bit lazy to do it myself .

It would be nice to see some online calculators cus these kinds of things can just be punched in. I'm sure quite a number of people have some Seachem bottles lying around that they got before getting into PPS or EI and it would just be a genuinely useful resource. Maybe this is something for me to do once Christmas comes around. Anyways, sorry for that long schpiel guys.

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Opare is offline

 Tags None

Message:
Options

## Register Now

In order to be able to post messages on the The Planted Tank Forum forums, you must first register.

User Name:
OR