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Old 01-12-2012, 05:59 PM   #21 (permalink)
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Default Re: Methods of softening water.

Or is slow growth a nutrient thang?
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Old 01-13-2012, 12:57 AM   #22 (permalink)
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Default Re: Methods of softening water.

Hard water might slow growth of some sensitive plants, but for the most part plants will adjust to a fairly wide range of parameters. What they don't adjust well to is a constantly changing environment. Fighting your water chemistry is a good way to develop a situation in which you're walking a tightrope between consistant growth and catastrophic algae outbreaks. Over time your plants will soften the water on their own which could make growing sensitive plants a viable option unless your water is outrageously hard. However fighting your water chemistry requires a lot of work, so its a matter of whether you'd rather enjoy your aquariums without a high workload or constantly be fighting to keep them in check. I, for one, would rather work with my water than against it.

Water hardness has little effect on CO2(it is true there is a relationship between the two but it is a weak relationship that is easily overcome with a consistant CO2 source). The biggest factor hard water has on growth in and of itself is the interactions between Ca-Mg-SO4-K but anecdotes often overstate this relationship to a point of absurdity. For me personally, I'd rather see consistant healthy growth than super fast growth that requires a high degree of input on my end regardless. Especially since often fast growth aquariums are teetering on the brink of disaster if regiments aren't kept fairly strictly.

If you're willing to put in the work, using humic acids in your filtration will create Ca-Humates that will remove the mineral hardness(carbonate hardness will adjust itself accordingly over time mostly) but the harder your water the more peat/humus/etc will be required and the more often changing out the softening agent will be required.
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Old 01-15-2012, 03:32 PM   #23 (permalink)
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Default Re: Methods of softening water.

Ok, understand thanks.
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Old 07-24-2018, 09:39 PM   #24 (permalink)
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Default Re: Methods of softening water.

TO or deionization does not change water hardness....
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Old 07-25-2018, 08:26 AM   #25 (permalink)
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Default Re: Methods of softening water.

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TO or deionization does not change water hardness....
Welcome to APC! Did you mean RO or TO? RO does reduce water hardness, by removing calcium, magnesium, Potassium, etc.
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Old 07-25-2018, 01:04 PM   #26 (permalink)
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Default Re: Methods of softening water.

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My first question is why try to soften your water? For most plants soft water is unnecessary. It may be recommended in books but it isn't really a necessity. Over time all plants will soften water but only a select few are affected by anything but the most extreme hardness levels. Peat and other "softening" methods do nothing for the DOC but instead lower pH, which may or may not be helpful. If you intend to grow specific plants that require constant adjustments to your water, I would suggest reconsidering. You fight your water chemistry you're setting yourself up for a long drawn out battle you will most likely lose. Instead, try to find plants that work with your water with little fuss and you and your plants will be much happier longterm.
I agree that fighting water chemistry is not worth it as there are hundreds of plants and fish one can choose from that will do well in hard water. Furthermore, most soft water plants and fish in cultivation adapt well to hard water, though breeding some sensitive fish may not be possible due to excessive Ca and Mg in hard water can affect egg fertilization.

BTW, what is your basis that "Over time all plants will soften water..."? It's wonderful if it is true because I can grow sensitive soft water fish and shrimp by growing plants.
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Old 07-25-2018, 03:16 PM   #27 (permalink)
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Default Re: Methods of softening water.

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BTW, what is your basis that "Over time all plants will soften water..."? It's wonderful if it is true because I can grow sensitive soft water fish and shrimp by growing plants.
If you never add more water to the tank, or replace part of the water routinely, I can see the possibility of the plants using up the calcium and magnesium in the water, making it softer. But, I can't recall anyone saying they experienced this.
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Old 07-29-2018, 08:27 AM   #28 (permalink)
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Default Re: Methods of softening water.

subscribed, this seems like a very interesting thread
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Old 02-19-2019, 10:10 AM   #29 (permalink)
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Default Re: Methods of softening water.

Pretty interesting posting
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