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[APD] Sand

Most sand is a silicate and not very soluble in water...

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-----Original message-----
From: aquatic-plants-request at actwin_com
To: aquatic-plants at actwin_com
Sent: Fri, Sep 16, 2011 16:00:04 GMT+00:00
Subject: Aquatic-Plants Digest, Vol 90, Issue 5

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Today's Topics:

  1. sand (RMGTBTS at aol_com)
  2. Re: sand (Stuart Halliday)
  3. Re: sand (Raj)
  4. Re: Aquatic-Plants Digest, Vol 90, Issue 4 (billpers at comcast_net)


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Message: 1
Date: Thu, 15 Sep 2011 15:54:42 -0400 (EDT)
From: RMGTBTS at aol_com
Subject: [APD] sand
To: aquatic-plants at actwin_com



yes sand does not interact with H2O. Would not be a lot of beaches.
The product sold to me as"pool sand was sold by humans and bagged by humans and handled by yup, humans, and may not be in its pristine and perfectly inert.state, having picked up some contamination at some point. when i put the substrate into the tank originally, the water cleared with very little effort. Easily the cleanest substrate material i had ever worked with.
i suspect that the pool sand was contaminated with something. all i can say for sure is that after a period of 6 months in the bottom of my tank with CO2, water changes and very soft water, that SOMETHING is clouding the water, slightly so but i have had others view the tanks and when brought to their attention verified that the tank was "less clear" than the 
other  tanks.
My filter maintenance (eheims on all the big tanks) is consistant with my other tanks and all are similar with the exception of the substrates. 
Perhaps it is this one manufacturer, processing plant, whatever.
But the tank was EMPTY when i added the substrate and all of the plants, driftwood and rock had been in other tanks here in Milton for several years. 

go figure
But IMHO the substrate, unless using the Dianne Walstead Methodm is the single most UNIMPORTANT component of a planted tank. If whatever is used is pleasing to the eye of the aquarist, then THAT is what should be used. I have seen a 60 gallon tank that had 3/4 inch of pea gravel harvested from a stream near the aquarist's family home. The gravel was totally inert and the aquarist grew anything she wanted to in her tank! If it looks the way YOU want it to, then that's what you should use. 
rich green
milton ma

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Message: 2
Date: Fri, 16 Sep 2011 10:05:33 +0100
From: Stuart Halliday <stuart at mytriops_com>
Subject: Re: [APD] sand
To: aquatic plants digest <aquatic-plants at actwin_com>

On 15/09/2011 20:54, RMGTBTS at aol_com wrote:



yes sand does not interact with H2O. Would not be a lot of beaches.



Since when?
Sand is mostly calcium carbonate, ie the dead shells of invertebrate animals. Course it dissolves in water! It is what gives water GH and KH. :) 


--
Stuart Halliday
http://mytriops.com/
200 Million years in the making...


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Message: 3
Date: Fri, 16 Sep 2011 17:15:34 +0530
From: Raj <rajendrakumargg at gmail_com>
Subject: Re: [APD] sand
To: stuart at mytriops_com, aquatic plants digest
	<aquatic-plants at actwin_com>



yes sand does not interact with H2O. Would not be a lot of beaches.


Since when?
Sand is mostly calcium carbonate, ie the dead shells of invertebrate 
animals. Course it dissolves in water! It is what gives water GH and KH. :)
Pool sand is not sea sand IMHO. Sea sand is almost 1/3 shells by my experience and makes the water very alkaline within a week. 

Cheers
Raj 


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Message: 4
Date: Fri, 16 Sep 2011 12:25:47 +0000 (UTC)
From: billpers at comcast_net
Subject: Re: [APD] Aquatic-Plants Digest, Vol 90, Issue 4
To: aquatic-plants at actwin_com



----- Original Message -----
Calcium carbonate (limestone) sand or gravel does dissolve in water, raising the hardness and the or pH. Unless one wants that effect, he should avoid it.
Bill 





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