Joined: Dec 09, 2012 Posts: 143 Location: R.R.Nagar,Bangalore
Posted: Sat Sep 07, 2013 2:18 am Post subject: clarification needed about dosing fertz
Hey guys ,
Need help regarding fertilizers
I have procured all the required salts for the macro and micro fertz , but the confusion is that the hobbyist who sold me the fertz , sujo sir has instructed me to dissolve the salts in water in Some proportions and instructed to add the fertz only once a week during water changes
But in another thread on iah by Shelly , he has mentioned his fertilization routine , in that he states that he doses macros and micros on alternate days with Saturday as rest day
So I'm very much confused about how to dose the fertz ,
Please do help me out with this I don't want to end up doing something wrong
My tank is a 2ft(2*1*1) tank with contro soil as substrate
Lighting 55w pl l
Also suggest the recommended lighting hours please
Posted: Sat Sep 07, 2013 10:11 am Post subject: Re: clarification needed about dosing fertz
first of all let me warn you that your lights are way too much for your tank. Yours would be a 15G tank, and you would need only about 30 to 35 W of light. You get 36W PLL lights which will be more than sufficient. More light means algae!
Now about the dosing:
There are many systems of dosing. EI, PMDD are the most popular ones. EI has a few variants also. Now to determine what fertilization routine would be ideal for you, you have to take your tank parameters & your convenience into consideration.
EI (estimative index) is a modern method mainly aimed at 'high tech' tanks. High tech means, high light (2.5 - 3 WPG or maybe higher), pressurized CO2 setup, nutrient rich substrate, dense plantation, high demand plants etc. But there is a variant in EI for 'low tech' tanks also.
PMDD (poor man's dosing drops) on the other hand is an older method which is still relevant. This is mainly for 'low tech' tanks. Low tech means, low to medium light (1.5 - 2.5 WPG), CO2 supplementation may be used or not (in any form), any substrate (DIY or branded), plants with lower demands etc.
Now these methods are only indicative and have to be customized to your needs. Both these systems have their pros & cons.
There is plenty of reading material on the subject all over the net & here on IAH. Please do go through them.
If you want specific suggestions/advice, please give full tank specs.
Joined: Jan 31, 2009 Posts: 2526 Location: New Delhi
Posted: Sat Sep 07, 2013 2:03 pm Post subject: Re: clarification needed about dosing fertz
Here are my recommendations on nutrients dosage.
Take 6 bottles of 500ml (600ml sprite bottle are good enough).
Cover them with black plastic cover or paper. (recommended)
Label the bottles like this.
Nitrate KNO3 (60 gms in 500 ml of water)
Phosphate KH2PO4 (10 gms in 500 ml of water)
Potassium K2SO4 (40 gms in 500 ml of water)
Magnesium MgSO4*7H2O (60 gms in 500 ml of water)
Chelated Iron (10 gms in 500 ml of water)
CSM+B (15 gms in 500 ml of water)
Nitrate KNO3 - Add 60 gms in 500 ml of water
Phosphate KH2PO4 - Add 10 gms in 500 ml of water
Potassium K2SO4 - Add 40 gms in 500 ml of water
Magnesium MgSO4*7H2O - Add 60 gms in 500 ml of water
Chelated Iron - Add 10 gms in 500 ml of water (Optional)
CSM+B - Add 15 gms in 500 ml of water
Add 5ml each of this solution after every 30 litre water change.
Please note that 30 litre is not the size of the tank but the amount of water you changed.
50% water change every week is needed before you add fertilizers.
This dosage is at the lower side and brings the lower sides of ppm levels.
If you are finding everything going fine, you can slowly increase the dosage.
You can keep this 5ml as minimum dosage and 10ml as maximum dosage.
Normally plants gets Calcium and Magnesium from the water we add.
So Calcium and Magnesium supplements are not always necessary. (Especially when you use tap water/Hard water)
Using water from RO water filter is recommended as we don't know the nutrients level in the tap water.
If you are dosing CSM+B, Iron dosing is not needed.
But you can dose iron if you want to increase the iron ppm levels.
1gm of Iron will give double the ppm levels of iron what 1gm of Csm+B gives
Phosphate will make your water cloudy and plants get this from the fish food.
So if you are adding a good amount of fish food to the tank, you can reduce the Phosphates dosing.
Add iron and Csm+B just before you switches off your light at night.
And the others (macros) in the day time after your water change.
If you notice the symptom of any deficiency in your tank, add a little extra of that nutrient.
Overdosing nutrients (especially Phosphates, Nitrates and Iron) can cause algae issues.
These are my recommendations or my way of doing.
Some other person will have his way of doing.
So you can read forums and discuss with others before you decide your way of doing.
WARNING: I will NOT have any responsibility if you face any issue after following my dosing methods.
P.S : This is he dosage recommended by Sujoy Thomas to me. He is also a member in this forum.
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