i typically follow that same guideline, but there is some humor in it....being that our test kits our not accurate, yet we base our supplements on them.
i find i get in trouble most often when i adjust params based on numbers, rather than the animals reactions.
jmo.
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"i like bubbly, and i love animals - so it works out well"
"there are a lot of people out there who think they have a modern house simply because they have alot of steel in it"
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