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#1
11-25-2013, 07:21 AM
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Two tangs max. I would say in your size tank (hope you plan an upgrade).
The box I would build would be at least 1' x 1' x 2' in order to fit into your 90g. A bit bigger would be better. Go with Purple. Powder anything tangs are terrible ick-magnets. The stress will likely cause a big outbreak that will kill at least the Powder Brown. Same shape yes, but the isolation chamber worked for me to get a school of 6 YTs in my old tank years ago, one at a time. 
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#2
11-25-2013, 12:26 PM
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All I can say is that I had a yellow tang and a powder brown tang in one of my nineties for two years, only to come home one eavening from work to find the brown dead on the bottom, and the yellow died a few days later.
They tore each other up quite badly. I'd never seen the aggression in that two years, and after it happened, I had plenty of "I told you so"s from other hobbyists.
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#3
11-26-2013, 09:04 AM
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OK, thanks for your info. I will go for purple tang. However, I'm thinking to do a little bit rock work change before Xmas. Do you think I can keep a baby purple tang in temporally 20gal SPS tank for few weeks? I only have a 3inch lawnmower blenny in that tank.
Last edited by htfn; 11-26-2013 at 09:08 AM.
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#4
11-26-2013, 09:58 AM
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If there is much of a size difference, especially with the new tang being much smaller than the old one, that can be a recipe for disaster. Much safer IME if the new tang is bigger (i.e. tougher) since the old tang will have home tank advantage, so to speak.
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#6
11-27-2013, 11:48 AM
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+1 for the purple, they are very shy and your yellow will be the dominant one and like other have said, I'd stick to just those two
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#7
11-27-2013, 03:57 PM
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Quote:
Last edited by byee; 11-27-2013 at 04:00 PM.
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