JMorgan
Member
From this thread: https://www.ukaps.org/forum/threads/all-in-one-macro-micro-fertiliser.42410/
Can anyone please confirm that James' TPN (3) formula is correct?
DIY TPN+ (3)
48g Potassium Nitrate
2.2g Monopotassium Phosphate
17g Magnesium Sulphate Heptahydrate (Epsom Salts)
0.5g E300 Ascorbic Acid
0.2g E202 Potassium Sorbate
5g EDTA Chelated Trace Elements Mix (TNC Trace, CSM+B)
500ml distilled water
I don't have the maths or chemistry to check this myself, it just seems a relatively huge amount of Potassium Nitrate at 48g so I just wanted to double-check:
For example in his formula to make his version of PMDD+PO4 . . .
10g Potassium Nitrate
2.3g Monopotassium Phosphate
4.0g Potassium Sulphate
8.0g Magnesium Sulphate Heptahydrate (Epsom Salts)
0.5g E300 Ascorbic Acid
0.2g E202 Potassium Sorbate
6g EDTA Chelated Trace Elements Mix (TNC Trace, CSM+B)
500ml distilled water
. . . . the amounts of the various chemicals are roughly equivalent save for the Epsom Salts and the Potassium Nitrate with the latter being nearly five times as much in the first formula, which just made me pause to question - especially since I lack the knowledge to understand how they can both be correct, or how to determine when one or other formula is more applicable
I am looking to work out a daily "All-In-One" dose for my various low-tech tanks which I'd describe as moderate to low light (very low when the frogbit's covering the surface!) with no CO2, but fairly heavily planted with crypts, echinodorus and java fern, and various other plants, none very fast growing. I've been using the dry APF-UK refills, which are a very good deal, but then Ive got all these EI bags of ferts I might as well make use of. So I got some Ascorbic Acid and Potassium Sorbate and was beginning to weigh out the amounts and found I couldn't actually fit 48g of Potassium Nitrate in my tiny scales!
One further question- when Tropica suggest 5ml per 50 litres per week are they talking about hi tech tanks and assuming 50% weekly water changes as with EI, or is it more of a safe minimal dose aimed more at a typical low-tech community planted tank which I would guess would perhaps not get such regular water changes and so the manufacturer would err on the side of caution with their suggested dosing?
I'm growing out a load of apisto fry in three tanks and consequently doing very regular large % water changes so I figured I might as well dose the plants a bit heavier and see what happened.
Thanks
Make your own all in one, same as CO2 supermarket are mixing, except you will not be paying a fortune for added dihydrogen monoxide.
http://www.theplantedtank.co.uk/allinone.htm
Get salts from, job done.
http://www.aquariumplantfood.co.uk/fertilisers/dry-chemicals/dry-salts.html
I made my own dosing pumps.
http://www.ukaps.org/forum/threads/diy-dual-peristaltic-dosing-pump-with-alternate-switching.22332/
Can anyone please confirm that James' TPN (3) formula is correct?
DIY TPN+ (3)
48g Potassium Nitrate
2.2g Monopotassium Phosphate
17g Magnesium Sulphate Heptahydrate (Epsom Salts)
0.5g E300 Ascorbic Acid
0.2g E202 Potassium Sorbate
5g EDTA Chelated Trace Elements Mix (TNC Trace, CSM+B)
500ml distilled water
I don't have the maths or chemistry to check this myself, it just seems a relatively huge amount of Potassium Nitrate at 48g so I just wanted to double-check:
For example in his formula to make his version of PMDD+PO4 . . .
10g Potassium Nitrate
2.3g Monopotassium Phosphate
4.0g Potassium Sulphate
8.0g Magnesium Sulphate Heptahydrate (Epsom Salts)
0.5g E300 Ascorbic Acid
0.2g E202 Potassium Sorbate
6g EDTA Chelated Trace Elements Mix (TNC Trace, CSM+B)
500ml distilled water
. . . . the amounts of the various chemicals are roughly equivalent save for the Epsom Salts and the Potassium Nitrate with the latter being nearly five times as much in the first formula, which just made me pause to question - especially since I lack the knowledge to understand how they can both be correct, or how to determine when one or other formula is more applicable
I am looking to work out a daily "All-In-One" dose for my various low-tech tanks which I'd describe as moderate to low light (very low when the frogbit's covering the surface!) with no CO2, but fairly heavily planted with crypts, echinodorus and java fern, and various other plants, none very fast growing. I've been using the dry APF-UK refills, which are a very good deal, but then Ive got all these EI bags of ferts I might as well make use of. So I got some Ascorbic Acid and Potassium Sorbate and was beginning to weigh out the amounts and found I couldn't actually fit 48g of Potassium Nitrate in my tiny scales!
One further question- when Tropica suggest 5ml per 50 litres per week are they talking about hi tech tanks and assuming 50% weekly water changes as with EI, or is it more of a safe minimal dose aimed more at a typical low-tech community planted tank which I would guess would perhaps not get such regular water changes and so the manufacturer would err on the side of caution with their suggested dosing?
I'm growing out a load of apisto fry in three tanks and consequently doing very regular large % water changes so I figured I might as well dose the plants a bit heavier and see what happened.
Thanks