Yeah, it's kind of an honor to have the grand poo-bah Tangster himself, respond.
Lose the crushed coral and get the sand. Notice though, Tangster didn't say anything about getting live sand. IMO "live sand" is a rip off. Realistically, how "live" is a product going to be in an anaerobic bag, sitting on some shelf? Just get aragonite sand, or any carbonate-based sand (i.e. not silica based) and in time, it will become live in your tank.
Do just what Tangster said and you'll be fine. FYI, carib-sea is $9.99 for a 20 lb. bag at my lfs. If the price tag on your sand bag is more than that, look around.
Last thing, a variety of grain sizes in one bag is better than just 20 lbs of single-sized grains.
Good luck!!
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90G display tank. Kent Phos Reactor running carbon and ROWAPhos, Coralife 225 Skimmer, Typhoon 5 Stage RO/DI, 20 Gal Sump/Refugium with Chaeto/Caulerpa lit opposite daylight cycle. Coralife 2x150MH, 14K + 2x96W PC Actinics, Ecotech Vortech propeller pump, Hydor Koralia #2. |