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Old 12-30-2008, 10:59 AM   #1
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Help! Aluminum or Zinc in tank

I have a 220 gallom SW aquarium with fish and live rock and a couple of soft corals. My problem initially was a lot of aptasia which I controlled with aptasia X to some degree. I decided to put some peppermint shrimp in the refugium sump and let them eat the aptasia and maybe place a rock at a time in there so they could clean one at a time. What happened is they migrated through bioball coulumn into pump intake chamber and perished in the pump. I thought I would try and place a screen in the chamber to prevent them from getting sucked into pump. This seems to have been a bad idea since the screen I used is possibly aluminum or zinc coated. I noticed the aptasia's dosappearing at an alarming rate, which normally I wouldn't mind, but along with them of course went other creatures, ampipods etc. Fish appear to be doing fine and are eating as is anenome, feather dusters, leather coral. One coral is not looking as good as usual. I of couse removed screen and did a 20% water change so far. I have read about products such as NovAqua which can reduce heavy metals. Any suggestions on how to best recover from this problem and restore tank back to health? I don't believe copper is used in screen.
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Old 12-30-2008, 12:02 PM   #2
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Frequent PWC`s would be a good start. Welcome to AA
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Old 12-30-2008, 12:10 PM   #3
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Thanks for the reply. I was planning on starting water changes as soon a s I can. How often would you recommend the changes? Currently I do about a 20% weekly. I will also test for copper just in case.
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Old 12-30-2008, 12:12 PM   #4
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Maybe twice weekly like that to start off with.
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Old 12-30-2008, 12:19 PM   #5
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As Melosu said, I would go ahead with 50% weekly (two 25% water changes) in addition to running heavy carbon and a poly-filter.
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Old 12-30-2008, 02:12 PM   #6
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Good call by James with the carbon. I`didnt think about that but it`s a great idea also.
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Old 12-31-2008, 03:32 PM   #7
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Thanks for the tips. I have placed charcoal filter and poly filter in refugium chamber. Copper test was negative. Tank is looking pretty good now, seeing some ampipods and small starfish now, fish are all OK. Aptasia's are returning so it appears like things will be OK.
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