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What Wattage metal halide light should I get ?

To: <Aquatic-Plants at actwin_com>
Subject: What Wattage metal halide light should I get ?
From: "J. Hammond" <geohammo at iinet_net.au>
Date: Thu, 22 Mar 2001 10:53:41 +0800
Importance: Normal
In-Reply-To: <200103212048.PAA04219 at actwin_com>

Im looking around at metal halides at the moment and have gone into a few
hydroponic shops to check some out.  I was just wandering what wattage I
should get.  The choice I have is between a 175W and 250W one - they are
basically the same price.

The globes in both are 6700K (is this ok for planted tanks?).  My tank size
is a 50 gal (or 200L) tank.  The 250 would give me 5w/gal and the 175 would
give me 3.5w/gal ? Would it be harder to keep the 250 because the tank would
become more unbalanced more easily ??

Any advice help would be appreciated

Thanks

Jon

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