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A little about SAND

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BCT182

Well-known member
Joined
Aug 10, 2004
Messages
2,388
Location
Sumner WA
okay, I was going to take down my tank to convert to sand, and paint my stand and stuff. My idea was paint the back of the tank black, and to have a black sand bed. My thoughts were that all the neon colors would be even brighter contrasting against black. Then I thought of this, black absorbs heat and my understanding is (and I'm probably wrong) that it absorbs light as well. So would I be taking valuable light away and create heat problems in my tank? Also I have heard sand is beneficial becasue it reflects light back up to the underside of corals, which wouldnt happen with balck sand right? Anyone ever used black sand?
 

wrightme43

Well-known member
Joined
Jul 1, 2004
Messages
4,355
Location
bowling green ky
The reason I dont use black sand is that it is not made of aragonite. I like aragonite, because at ph 8.2 it dissolves and provides buffer componds, and calcium, and trace elements. The flip side is that it (the black sand) is very pretty. I have never tested to see if a tank is hotter with black sand. I would think unless it is very shallow the water would absorb all the heat before it got to the bottom so that might not be a issue. I would say that the reflected light would be a lot less. This is only my opinion but always check to make sure you are getting aragonite. Arag-alive has done well for me for years. Hope that helps you. Steve
 
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