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Old 09-13-2009, 12:33 PM   #1
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What is meant by a coral being aggressive?

Hi Guys
What does it mean when a coral is said to be peaceful, semi aggressive and aggressive? Also how is each one handled?
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Old 09-13-2009, 12:37 PM   #2
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Some will wage chemical war on each other. Others will sting your other coral if kept to close, Euphyllia comes to mind at that.....

Aggressive and semi-aggressive should be placed away from other coral, put in a corner is best IMO.
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Old 09-13-2009, 12:56 PM   #3
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Thanks man. Is this chemical warfare dangerous to the fish, snails crabs etc? Let me venture a guess, the more aggressive corals are the better looking ones?
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Old 09-13-2009, 01:03 PM   #4
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Most of them are the nicer looking ones like frogspawn, torch, and anchor (Euphyllia). They have "sweeper tentacles" that will sting your other coral if to close. As for the chemical, I would think it is only harmful to the coral, you will have to wait for someone else to answer that.
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Old 09-13-2009, 01:06 PM   #5
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I think it's only coral to coral warfare, the other fish know better than to poke their heads in there, that's why clowns developed a relationship with anemones for safety, no one is going to bother them there
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Old 09-13-2009, 01:07 PM   #6
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That's pretty cool stuff. Can their sting hurt us?
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Old 09-13-2009, 01:12 PM   #7
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It can leave a red mark, but that's about it.
They wrap around you though, it's a pretty weird feeling.
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Old 09-13-2009, 01:13 PM   #8
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Nope, their stinging cells (think thats what they are called) can't penetrate our skin.
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Old 09-13-2009, 01:58 PM   #9
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Thanks everyone. I think my tank is ready for some corals the parameters are coming together.
Silicates = 0
Phosphates = 0
Ammonia = 0
Nitrites = 0
PH = 8.3
DKH = 9
Calcium = 400
SG = 1.025
Temp = 79
I start bringing my fish out of HYPO this week, can't wait to get them back in the DT.
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Old 09-13-2009, 02:02 PM   #10
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Calcium is a little low to me. Bump the temp up to 80-82. Everything else seems good to me.
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