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Old 09-13-2012, 07:36 PM   #81
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Alk at 7.7 shouldnt kill corals IMO, mine was low around 7 for a few months and all my coral were fine and grew. I just recently bumped it up to around 10
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Old 09-13-2012, 09:23 PM   #82
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While I agree that 7.7 is on the low end, I don't think it outside the normally accepted range, and certainly shouldn't be so low as to cause my coral to shrink away and die.
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Old 09-14-2012, 02:15 AM   #83
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I think I remember saying you don't run carbon. Maybe you should for a bit. There could be something in the tank that's not tested for. Manufacturing oils, residues, accidental spills (air fresheners being sprayed in the room), etc. Really can't hurt. I run carbon and gfo in a reactor 24/7.
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Old 09-14-2012, 08:18 AM   #84
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I ran it for 3 or 4 weeks before. It didn't help. I am not currently running it.
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Old 09-14-2012, 08:47 AM   #85
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Just a thought, but what is your tank temp? I just skimmed back through and didn't see it listed. Also, what kind of thermometer are you using? For example, I use a Coralife digital thermometer on my nano, it reads 2.5 degrees lower than the actual tank temp. On my 75 I run a cheap glass thermometer in the sump, and it's dead on. I came to this conclusion by comparing both temps to a standard everyday digital thermometer from CVS. You might look at what kind of temp swings you are having through the day. Just a thought...
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Old 09-14-2012, 09:18 AM   #86
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It stays steady at 79. I have 2 digital thermostats and a digital thermometer. All 3 always read 79.
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Old 09-14-2012, 10:33 AM   #87
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I have not read all of this but do you have a ground probe on the tank. Maybe some stray electricity from the lights and pumps? I`ve heard of this hindering corals.
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Old 09-14-2012, 08:13 PM   #88
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Quote:
Originally Posted by melosu58
I have not read all of this but do you have a ground probe on the tank. Maybe some stray electricity from the lights and pumps? I`ve heard of this hindering corals.
Even if it's not, the few bucks a ground probe costs is worth it IMHO after all we spend on our reefs for a possibility of eliminating a potential problem. I run mine in my sump, it's small and I even forgot it's there until reading this lol.
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Old 09-14-2012, 08:46 PM   #89
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I work at my LFS and I asked one of the marine biologists on at that time about iodine and he said honestly he never added iodine. He said if you do water changes atleast ten percent it adds the lost iodine without overdosing. He also told me it is extremely easy to overdose and wouldn't add anything without a test kit. Just my opinion but it's a waste of money to buy and add iodine or test kits etc on iodine. As long as you have a decent salt mix you should be good.
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Old 09-14-2012, 08:48 PM   #90
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Have you been feeding, fort? IMO, no coral can survive on just light.
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