Seachem Dosing Calculator/Chart - Page 2 - Fertilizing

Left C · 01-31-2008, 06:11 AM

Quote:

Originally Posted by puttyman70

Thanks for posting this info. I have been using Seachem stuff for a while (excel, flourish, iron). I have been using excel since I didn't have CO2. I just added pressurized CO2. Does one still use excel in addition to CO2?

Also a 5% water change seems small compared to what I have been reading? A lot of the methods that I have been reading about suggest much larger changes. I am still in the learning stage so this is definitely a question and not a judgment. If you changed a larger % of the water it would throw the whole regimen off right?

Basically I am trying to get my tank more dialed in and am trying to decide on a fert. method and I'm a bit overwhelmed by all the options.

The Seachem chart says to do 5% water changes.

I did 50% weekly water changes and followed the dosing plan on the chart. It worked fine.

When I did the calculator, I put in 50% weekly water changes.

You can dose Excel with CO2 if you want, but I would lower the dosing amounts. If you want to discontinue dosing Excel, that'll work too.

Newt · 02-25-2008, 09:25 AM

Left C,

I just want to thank you for all of your help (on several websites) in understanding Seachem vs Dry Ferts and how to convert, Mix and Dose. You've made life easier.

I like Seachem products but they are more expensive so I will now be able to use them up and convert over to Dry Ferts, thanks to you.

mikenas102 · 02-25-2008, 09:46 PM

This is a great chart and plan for the beginner. I used it for the first year I was in the hobby. My only issue was that it tends to be a bit on the lean side. Not enough to create major problems but I had to up the doses just a bit. However, I also have very soft water with not much in it out of the tap.

Left C · 02-25-2008, 11:16 PM

Thanks guys for the nice complements. It is a good tool to learn with and you can expand from there.

Left C · 04-03-2008, 12:14 AM

Quote:

Originally Posted by mikenas102

This is a great chart and plan for the beginner. I used it for the first year I was in the hobby. My only issue was that it tends to be a bit on the lean side. Not enough to create major problems but I had to up the doses just a bit. However, I also have very soft water with not much in it out of the tap.

It's in Excel format and you can adjust each nutrient by any amount that you would like. This calculator is based strictly on Seachem's dosing recommendations. Higher lighting and higher CO2 and nutrients would certainly require more.

If you need to know how to adjust it, just PM me and I will help you.

Left C · 04-03-2008, 01:17 AM

Quote:

Originally Posted by Left C

It's in Excel format and you can adjust each nutrient by any amount that you would like. This calculator is based strictly on Seachem's dosing recommendations. Higher lighting and higher CO2 and nutrients would certainly require more. It works very good for Seachem procuts at many lighting and CO2 levels.

If you need to know how to adjust it, just PM me and I will help you.

Quote:

Originally Posted by Left C

Using – Mixing Dry Chemicals for Seachem’s Dosing

Seachem’s products are a little expensive, but they are very good. I know some people would like to cut the cost some and use some of the dry fertilizers that are available.

The following dosing solutions will be practically the same strength as Seachem's macronutrient products according to the online calculators. You then go by Seachem's recommended dosing amounts on the calculator.

Dosing Solutions
- Add 62.2 grams or 11⅛ tsp of KNO3 to 500 mL of distilled water for F. Nitrogen Substitute
- Add 3.5 grams or ¾ tsp of KH2PO4 to 500 mL of distilled water for F. Phosphorus Substitute
- Add 51.0 grams or 8½ tsp of K2SO4 to 500 mL of distilled water for F. Potassium Substitute*

*(This amount approaches the maximum solubility of K2SO4 of 12 grams per 100 mL of distilled water. You will probably need to shake the container each time prior to dosing.)

Online Calculators Used:
http://www.fishfriend.com/fertfriend.html
http://www.fishfriend.com/fertfriend.html
http://www.csd.net/~cgadd/aqua/art_p...osage_calc.htm
http://www.aquaticplantcentral.com/f...fertilator.php

IMO, you may omit F. Trace even though it is included in the calculator.

I do not have a substitute for Flourish, F. Excel and F. Iron at this time.

I hope this helps you. Let me know if it works well. It has worked well for me over four years.

Left C

Arx Arx

LetDiceFly · 05-30-2008, 10:23 AM

I'm just getting started with the planted tank concept, and haven't tried using anything beyond Flourish and Excel, but is there a reason that you can't mix a solution of all these products and dose daily. It would be much easier to be accurate with a smaller tank.

Newt · 05-30-2008, 12:14 PM

If you mix the F. phosphourus and F. iron the iron will drop out of solution and/or form iron phosphate which really doesnt dissolve in water. So dose to the tank water and you wont have any issues.

Left C · 06-01-2008, 11:05 PM

Here's a bit more info. You can put it on your computer and since that calculator is Excel 2003 based, you can use all of Excel's features to modify it. You can use the unhide feature to view it. You can adjust the individual formulas any way that you want. You can add more products like Equilibrium, their Buffers, MgSO4, MgSO4∙7H2O, CaCl2, CaCl2∙2H2O, CaCO3, NaHCO3 or anything else that you want to add or do. You can also add a calculator that converts dH to ppm and vice versa.

Left C

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derringer · 06-29-2008, 12:08 PM

I cant seem to get the attached file to load - is it still available?