hydro nutrients ?
- Thread starter fluffydog
- Start date
alexdunaba
Well-Known Member
Supposedly they aren't as potent as they were prior to being opened and sitting there for years. Could be that some of the water in those nutes evaporates, or it could just be a marketing ploy. I have some General Hydroponics nutes that I've used for almost four years and haven't had an issue. $.02.
fatman7574
New Member
Chemical fertilizers do not lose potency, but they absorb water from the air so they take on weight. Therefore 16 ounces camn become 18 ounces. It will still only have the strength of the original 16 ounces.
The fertilizer is fine as long as it will all dissolve. If it has formed clumps it will take longer to dissolve. Dissolving it in hot water and letting it cool is fine. If it does not all dissolve or if it forms precipitates I would replace it rather than filtering and using it.
The fertilizer is fine as long as it will all dissolve. If it has formed clumps it will take longer to dissolve. Dissolving it in hot water and letting it cool is fine. If it does not all dissolve or if it forms precipitates I would replace it rather than filtering and using it.
fatman7574
New Member
Wow, someone thinks AN is cheap!!!! Someone email AN they will use the quote in an add. Even they have never claimed to be cheap. They just foolishly claim to be the best.
the nutes are canna veg and flora and pk 13 - 14 i opened them when i first got them just under 2 years ago and then re sealed the lid, they have been stored in a cool dry place but thought the air may have done something, didnt wanna chuck them as they cost a bit, checked the canna website and they say the shelf life is 2 years so dont know what to do?
fatman7574
New Member
As I said if they will dissolve and do not leave precipitates they will be fine. Pretty hard for mineral salts to loose any potency. They are are minerals not decomposable oxidizable organics.
alexdunaba
Well-Known Member
Are you referring to a liquid or powder form of nutrients?
fatman7574
New Member
Powder as far as the dissolve aspect. Also the part about mixing with hot water. If it is a two part liquid only heat the the part that does not contain the calcium. Soluble calcium will form calcium carbonte if it is heated. The calcium carbonate will become soluble agin aftet it cools as long as there is no phosphorus or magnesiun in that part of the fornulation. If they are present then a permanent carbonate will form. ie buffers (alkalines).
As far as the precipitates that applies to either or. There should be no precitates in the jug. If there are either throw it out or heat it up real well then shake and stir it real well before even trying it out. If after doing this heating precipitates still form after mixing just discard it all.