Sure, for your 125 gal tank there:
You need more plant biomass however.
1 tsp of KNO3
1/4 tsp KH2PO4(same thing PO4 from SeaChem is+ water)
GH booster: 1 tsp after water change only
20mls of traces 3x a week, Tropica master grow.
The macros run about 2$ a pound from aquarium fertilizers.com
So they will last about 3 mixes
4 x 1 lb of KNO3
1lb of KH2PO4
1 lb of GH booster
About 1-2 years etc for your tanks.
The trace mix, flourish is the largest expense.
I do not care for CMS personally for the trace mix.
But that's about to change, I have a custom made a aquatic plant specific mix for traces that we can mix dry(saves shipping cost by 10X less weight/less storage) and makes about 10-20x the same volume for the same price. So it's 10-20X cheaper than on line cheapo pricing.
Regards,
Tom Barr
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