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Hallo Sabine, Good question!!! The answer is yes, but I do not know with respect to NO3 nor PO4!! Well over 150-200ppm for NO3! Well over 10ppm for PO4! KH? Here's where we can see some issues as the KH rises. About 10-20 species of plants prefer lower KH's, however, many like...

Yes, you should try the reduction approach and watch the plants. While I suggest higher levels, then you taper off till you find the right level where adding less has a negative impact on plants. Then you dose a tad more than this, basically following Liebig's Law on the Minimum , making...

Well, not everyone, some have been led to believe things for many decades. However, I am very much an empirical person, not easily convinced and must prove things to myself before believing them. So I test and set up experimental design that falsifies things. The photos are just some of my...

Danka Tobi :D Tom Barr

Here's some more tanks that all use EI dosing and have for many years: If the levels are toxic, why have the Discus bred and the Apistos? How is it that I can keep and raise large numbers of Altum angels without issue? I do not subscribe to luck or magic. Let's look...

Hello, Tobi suggested I could post in English. I can back cross translation engines to check and translate without runing the languages(English to => German= then back to Enlgish again to check then edit where needed) I have been told many have questions about the number of methods I use...