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Old 08-26-2011, 05:28 PM   #141
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The ebay rodi has a reject ratio of 1:3 I believe. Wouldnt it make more ssense to go for a more efficient rodi? Only reason I ask is because ive seen some rodis with a 1:1.5 ratio.
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my 125g Sw...Round 2!http://www.aquariumadvice.com/forums...220171-33.html
ever see someone cut a 125g in half??
http://www.aquariumadvice.com/forums...-286438-4.html
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Old 08-26-2011, 05:52 PM   #142
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its my understanding that the higher the rejection the better the water. true or false?

also found this one. just waiting on it to be carefully placed at my door.

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Old 08-28-2011, 07:00 PM   #143
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Well im not sure what RO/DI unit to go with just yet, im still reviewing all the recommended units.

I am curious as to what substrate to go with. Im curious which is best to house the most species of SW, ie. sand sifters, burrowers....etc. Also which helps with the chenistry of the water when it comes to reefs and corals.
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Old 08-28-2011, 07:06 PM   #144
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Argonite sand is popular for Its ability to buffer sw. Pool filter sand and play sand are cheap viable substitute. If youre planning on bottom dwellers and sand sifters, go with a finer grain substrate, saves the fish from getting cut up
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my 125g Sw...Round 2!http://www.aquariumadvice.com/forums...220171-33.html
ever see someone cut a 125g in half??
http://www.aquariumadvice.com/forums...-286438-4.html
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Old 08-28-2011, 07:07 PM   #145
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i know what i went with, but i too would like to see some definitive arguments.
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Old 08-28-2011, 07:07 PM   #146
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define finer grain.
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Old 08-28-2011, 07:11 PM   #147
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Pfs would be a fine grain.. Play sand finer grain.. Sorry dont have any technical answers
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ever see someone cut a 125g in half??
http://www.aquariumadvice.com/forums...-286438-4.html
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Old 08-28-2011, 07:13 PM   #148
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the finer the granules, the less detritus get's in it. i like slightly larger than sugar sized grains, and i like aragonite sand. it's just like huma-huma said. either can be used. some say the silica sand can cause algae problems, but i've read that the silicates are used by some of the life in the system and are beneficial.
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Old 08-28-2011, 07:13 PM   #149
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I heard to use PFS, but you have to get a certain type that doesnt contain silicates or something like that...
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Old 08-28-2011, 07:16 PM   #150
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Quote:
Originally Posted by huma-huma View Post
Pfs would be a fine grain.. Play sand finer grain.. Sorry dont have any technical answers

what did you use? carey used crystal sand pool filter sand. i used aragonite seaflor special grade reef sand. i was warned against sugar fine because it will compact too much and too much current will stir it up.
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