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Old 05-01-2012, 06:26 PM   #11
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Cc capt, doesn't that mean you occassiinally have to add trace elements or calcium supplements if you have a reef tank due to what corals like Lps absorb..???
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Old 05-01-2012, 06:53 PM   #12
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You need a large amount of corals to remove all of the calcium from the water. That is why they make salt just for reef aquariums...and you need a large amount of corals to remove them.
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Old 05-01-2012, 07:09 PM   #13
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Quote:
Originally Posted by nafuzy View Post
Cc capt, doesn't that mean you occassiinally have to add trace elements or calcium supplements if you have a reef tank due to what corals like Lps absorb..???
Instant Ocean typically mixes to around 400 calcium, 11 dKH alk and 1350 mag. These parameters are all very acceptable for any and all reef tanks. Depending on the types of corals you keep, especially SPS, you may have to dose calcium, alk and mag, but that would be the case with any salt you decided to use. If the corals deplete them, they would deplete them regardless of the salt brand. All the trace elements needed are contained in the salt and are replenished with regular water changes.
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Old 05-01-2012, 10:43 PM   #14
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But don't "some" elements deplete "more than others," let's say in a 90% lps tank? In that case, would an occasional calcium dosing (small) be necessary "along with" the water change???
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Old 05-02-2012, 08:58 AM   #15
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With LPS corals, most likely no dosing would be required. Calcium, alk and mag is used by corals when they grow their hard skeletons. The skeleton of LPS corals grow pretty slow, so regular water changes should keep the parameters in line. An occasional dose of each may be needed, which is why it's good to get into a routine of testing your water parameters.
When a coral forms its hard calcium carbonate skeleton, it uses a fixed rate of calcium, alk and mag. The ratio is 18ppm calcium - 1meq/l (2.8dKH) alk - 2ppm mag. In other words, if your corals are depleting 18ppm of calcium from your water, they willl also deplete 2.8dKH of alk and 2 ppm of mag.
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Old 05-02-2012, 09:44 AM   #16
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No dosing here either all natural baby lol
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Old 05-02-2012, 10:19 PM   #17
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Ok that's how I'm trying to do it. Worked decent last time but thru experience etc I'more prepared this time.

I'm thinking of getting ALL my foods from sfb frozens. I've always liked them and they have everything I need for corals anthias etc. whatcha all think of that??


And thank you capt that was extremely helpful knowledge.
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