Dennis Wong's APT Complete - Page 2 - The Planted Tank Forum
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post #16 of 17 (permalink) Old 08-12-2020, 12:25 PM
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Originally Posted by Cichlid-140 View Post
I've switched gears and I'm going to a South American Cichlid tank and I will need the K and Mg. I know front loading (weekly dosing after a water change) for some components is not advised. How about K2SO4 and MgSO4?
I keep African and CA/SA cichlid in my planted tanks and front load all nutrients after weekly 75% water change with the exception of Fe, Ca and Mg. I dose chelated DTPA and Gluconate iron every other day due to bio unavailability of Fe3 in aerobic environment. I never see the need to dose Mg and Ca though as I have dolomite substrate and limestone rock that are reservoir for both minerals, besides my tap water has enough hardness.

Just wonder what form of Fe is in Dennis Wong APT complete as Fe/PO4 combo can potentially precipitate each other out.
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post #17 of 17 (permalink) Old 08-13-2020, 09:01 PM
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Originally Posted by ZeusT32 View Post
Unless thats a typo on Dennis page his quote for APT Complete is 1.5 ppm Nitrogen (N) which isnt [NO3 ppm] (it is quoted as Nitrogen (NO3) for APT Est -Index) which would work out for APT Complete at 6.64ppm NO3 per 5ml dose for 100l tank
It is a typo on the webpage where it shows the dose page IMO as on the back of the product is says 1.5ppm Nitrogen (NO3)
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