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Old 09-01-2006, 05:15 PM   #1 (permalink)
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I'm thinking about another tank. The guy at my lfs said a 90 is too tall for a planted tank because of lighting. I'll probly have a 130 watt light.

What do you guy's find to be a good size. I'm going el natural. What do you think. 75, 90, maybe a 135 or something with that foot print. I want to not get an odd ball size that will raise the cost, and keep lighting on the cheap if there is such a thing. Thank's for any input.
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Old 09-01-2006, 05:37 PM   #2 (permalink)
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I think the guy at the lfs is smoking crack. With the availability of so many various lighting options on the market height is not an issue. For scaping, tanks that have have depth are best. You probably notice how the 55 you have now limits you. A tank that has a 2 : 1 : 1 ratio in length : width : height tends to offer the best looking scapes. Such as 36x18x18 or 48x24x24

Height really becomes an issue when going over 30" tall. It's hard to reach the back without a stool unless you have quite long arms. Ground cover plants such as HC and glosso would need a light with a lot of punch in a taller tank like that as well. However, going the El Natural route you generally would not use plants such as those.

A 90 like that would seemingly do well with approx 180 watts. Easily accomplished with 2x96W PC.
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Old 09-04-2006, 10:49 PM   #3 (permalink)
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I have a 75G - 48x18x20 AGA; I am happy with it. But, I'm using two light fixtures because with 18" depth front to back I found that a single fixture was not casting enough light. The front edges and back edges were darker.

When you say you have 130w of light, if you're planning on not upgrading your lighting then the 90G might be more of a problem/challenge.
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Old 09-05-2006, 11:28 AM   #4 (permalink)
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Typically you want to keep the height around 24" or less, both because it becomes difficult to maintain when you have to reach in for maintenance (obviously this various with body type, etc.), and also light penetration starts having difficulty at this depth. Metal halide lighting can increase this depth somewhat however. Also remember the depth of the substrate has a small part in reducing how deep the water will be. The minimum depth from from to back I would recommend is 18." This gives you more options when aquascaping. Length normally isn't a concern, except with extremely long tanks as it becomes difficult to aquascape in one cohesive unit. My in wall show tank is an Oceanic reef ready tank with the dimensions of 60.5L x 23H x 18.5D (110 gallons) and I am very satisfied with it. My next show aquarium will likely be 72 x 24 x 24 (180 gallons).
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Old 09-05-2006, 11:44 AM   #5 (permalink)
 
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Gnatster is right - look for depth. I find that without some depth, my aquascaping always looks like the side wall of a building (a lawn leading to tall bushes against the back wall). Depth allows me to create layers both in terms of top to bottom and front to back.

With that said, if you don't want to do a lot of equipment upgrades, the 75g would be very good.

My vote would be for a 110, 135 or the really cool 180 suggested by aquaman3000.
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Old 09-05-2006, 05:21 PM   #6 (permalink)
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What do you guy's think about a 120h. It's 60Lx18wx25tall. Out of all the tank's I've seen, this is the one I really like. How ever, I'm concerned it might be too tall. The light I would use would most likely be on leg's. I would have use a 260w light. You guy's think that would work, or it's too tall.
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Old 09-06-2006, 03:33 PM   #7 (permalink)
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I think that is a great size. Put 3-3.5 inches of substrate in and I doubt the height will be a real concern. Even better if you can use metal halide lighting.
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Old 09-07-2006, 08:20 PM   #8 (permalink)
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75G are good. 48x18x20 with the 4" of substrate you get the 2:1:1 ratio. Then you can pick from the many 48" light fixtures.
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