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Old 08-15-2013, 02:21 PM   #1
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best ways to control calc, mag, alk?

I've been having a slight problem lately keeping these 3 in check. They seem to vary every week. Mag will be good for weeks the suddenly I noticed a dip. Calc is pretty constant but on occasion it dips more than I expect also. Then there is all, this seems to drop the most thru the week but that too varies at times. I am dosing calc and alk, which sends to help stabilize the calc but seems only temporary in keeping the alk up. Any suggestions?
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Old 08-15-2013, 02:32 PM   #2
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Oh, I do water changes religiously every week. Just under 10%
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Old 08-15-2013, 03:51 PM   #3
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Need some more details. Tank size. Coral type and amount as well as any other issues that could effect those values. Unless you have a big coral load, there isn't much absorbing calcium. The values do bounce around some. Just try to keep the values in the safe range. Water changes are always your safest bet. Dosing works well, but you have to monitor it a lot.
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Old 08-15-2013, 04:08 PM   #4
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Sorry about that. It's a 56 gallon column with sump. I have 2 chalice, a hammer, 2 frogspawn (one is pretty small) a lobo, toadstool, an orange cap, and 2 other monties (one may be a sunset, supper cool but tiny), an abundance of mushrooms, xenia (weeds), some Acans, a Kenya tree (also a pain), gsp, a couple types of zoa, and some other polyps (can't remember type). Oh also a coupe favia. Most of this is small except the mushroom colony and the xenia.
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Old 08-15-2013, 04:11 PM   #5
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I only dose what I can test for and overdosing terrifies me so I usually underdose.

Thanks for the help Greg.
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Old 08-15-2013, 04:24 PM   #6
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I guess my biggest concern is keeping my alk steadier.. that's the one that seems to really dip st tines... Oh I forgot I also have a candy cane, trumpet, and a Duncan... Guess I have more stuff than I thought.

Pardon the posts, spell check is a killer when your in a rush.
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Old 08-15-2013, 04:48 PM   #7
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Your first concern should be maintaining alkalinity, too low and corals start dying. There is nothing wrong with dosing alk without dosing calcium if that's high enough already. Many folks add a dissolved spoonful of sodium bicarbonate (baking soda) to their tank daily as many things can draw alkinity down. Your calcium and mag levels can be dosed, but a good reef salt mix may even reduce the need of that.
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Old 08-15-2013, 05:05 PM   #8
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Thanks Greg,

I had lost a bird's nest I believe be cause of an alk drop. I do dose alk but inconsistently... I'll try dosing twice a week and if that balances off I'll just add that to my top off water. I wonder if my salt mix is insufficient? Aquavitro salinity
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Old 08-15-2013, 05:09 PM   #9
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Never used that. I am a reef crystals guy.
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Old 08-15-2013, 05:17 PM   #10
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For the price I paid I'm not a huge fan either, once this bucket is done I'm going to try something else.
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