I'm just fucking with you man. Your first post read to me as a little cocky between your comment re: EDTA and the last line about organics, read to me like you were looking for a hydro vs organic pissing contest. You seem genuinely intent on figuring out what's what so let's skip the bullshit and get down to it.
Do you mean an alternative for Cal/Mag to use in hydro applications? Or just any organic cal/mag supplement? There are a couple of things to choose from but it's not as simple as saying "use this" because I need to know what else you use and what might be an organic equivalent. You might not necessarily need a Cal/Mag supplement, you know what I mean?
Washington and Oregon databases are very helpful, they have an extensive list of tested products. I don't use guano nor do most organic farmers I know. The heavy metal content is one reason, among many. There are ways soil growers can deal with this, if they're so inclined, or just skip it, guanos are easily replaced.
As for hydro growers who might use guanos, pick something else if heavy metals are a concern. That's been my point from the beginning man, you're not tied to using only guano as an organic fertilizer. There are lots of other things available. If you're looking for ferts/amendments suitable for organic hydro things do get a little trickier, though they are improving, but it is still possible.
Also, I can't help notice you picked two fairly dissimilar items to make your point. A high P guano versus a veg nute? I've never minimized the issue of heavy metals, to be clear, but I try to maintain a balanced perspective. Comparing raw guano to a highly processed inorganic mineral is not exactly apples to apples. Consider that most hydro growers would not use raw guano because it has poor solubility and needs to undergo a mineralization process to really give up the goods. Bottled nutes are (generally) already mineralized, thus the immediate uptake.
Do you mean an alternative for Cal/Mag to use in hydro applications? Or just any organic cal/mag supplement? There are a couple of things to choose from but it's not as simple as saying "use this" because I need to know what else you use and what might be an organic equivalent. You might not necessarily need a Cal/Mag supplement, you know what I mean?
Washington and Oregon databases are very helpful, they have an extensive list of tested products. I don't use guano nor do most organic farmers I know. The heavy metal content is one reason, among many. There are ways soil growers can deal with this, if they're so inclined, or just skip it, guanos are easily replaced.
As for hydro growers who might use guanos, pick something else if heavy metals are a concern. That's been my point from the beginning man, you're not tied to using only guano as an organic fertilizer. There are lots of other things available. If you're looking for ferts/amendments suitable for organic hydro things do get a little trickier, though they are improving, but it is still possible.
Also, I can't help notice you picked two fairly dissimilar items to make your point. A high P guano versus a veg nute? I've never minimized the issue of heavy metals, to be clear, but I try to maintain a balanced perspective. Comparing raw guano to a highly processed inorganic mineral is not exactly apples to apples. Consider that most hydro growers would not use raw guano because it has poor solubility and needs to undergo a mineralization process to really give up the goods. Bottled nutes are (generally) already mineralized, thus the immediate uptake.
