what is the difference between ammonia nitrate and calcium ammonia nitrate?

4 Answers

  • The second has some calcium in it and is a mixture of several chemicals including ammonium nitrate.

    Calcium ammonium nitrate, often abbreviated CAN, is a fertilizer which is a blend (mixture) of about 20%-30% CaCO3 and 70%-80% Ammonium nitrate. It is used as a general plant fertilizer. It is an example for nitrogenous fertilizer.

    (second reference)

    Calcium ammonium nitrate (CAN) contains 27 % N and 20 % of ground limestone. Nitrogen is half in the nitrate form and half in the ammoniacal form. This results in rapid as well as permanent effect. The granulation of this fertilizer ensures a quick and exact dosing. Calcium ammonium nitrate has a form of 2 - 5 mm large of whitish till light brown colour granules. The fertilizer has excellent physico-mechanical properties and properties for storage

    The chemical compound ammonium nitrate, the nitrate of ammonia with the chemical formula NH4NO3, is a white crystalline solid at room temperature and standard pressure. It is commonly used in agriculture as a high-nitrogen fertilizer, and it has also been used as an oxidizing agent in explosives, including improvised explosive devices. It is the main component of ANFO, a very popular explosive. It is used in instant cold packs, as hydrating the salt is an endothermic process.


  • Calcium Ammonium Nitrate

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    I think it is a little high to change out in one shot, but with the others saying it's too soon, I think they are not accurate. Ok as I explained in other answers, there are always going to be exceptions. But I really strongly feel, going to every 2 weeks is not a good idea. I think a good weekly 30-40% for your tank is just fine. Going up to 50% in one shot, you run a risk of too much of a temp difference, as well as a possible ph shift. The tap water, unless you run a thermometor in your bucket, is just a touch esitmate. In actuallity, it's probably more like a good 5-10 degrees difference between that and what is in the tank unless you take a good reading. It's hard to take a good reading because when you fill up your water to put in the tank, it's still settling, and takes more time to really let the temp in that water distrubute evenly to take an accurate reading. Also even though it's the same tap water you'd have filled your tank initally with, it doesn't mean it's going to have the exact same ph as what is in the tank. Your tank Ph in an established tank is well to have settled into what it's everyday reading is and probably doesn't match your tap exact. If you're adding half the volume of the tank as fresh from tap, and a shift of over .5 a point, that can do more damage then good. In a lower amount of change, there is less of an overall shift if there is a difference. This is why I'd say you're better off with smaller weekly changes. I only do 50%'s myself if its like an emergency change out. You certanily are not going to harm anything doing say weekly changes at 30%. I can see you possibly doing more harm by waiting for those saying 2 weeks or a month. What they are not considering in this advice is this. Even though thier tanks are established, and even if it's heavily planted, it's never going to totally consume then end product, nitrates totally. And those nitrate accumulate over time. Even if you cut feeding down, one of the other big sources of ammonia is fish respiration itself. Longer term exposure to elevated nitrates can leave a fish with a weakend immune system. Should anything ever get in, you're liable to lose your fish more rapidly then you would if they had a stronger immune system. And on top of all that, waiting 2 weeks or 4 weeks to gravel siphon out the waste, it's really promoting conditions for unwanted pathogens to enter the tank. You really can't be too safe. One final note, changing the water on a weekly basis will also promote a good tank by replenishing vital compounds that are not otherwise replaced, such as calcium, magnesium ect which have many beneficial effects on your tank. JV Follow up: Point in the case of exceptions, look at Ash. As I said there are always going to be those exceptions, but all in all, it's your call. You want to roll the dice and hope you don't imbalance your tank Chris, it's up to you. I can only tell you what I know from keeping small and large tanks as well.

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