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Old 06-16-2010, 09:13 AM   #1
Mr. Limpet
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calcium blocks


The local lfs gave me calcium blocks so I put them in my tank last week instead of using b-ionic. I did a test yesterday my calcium is right at 440. I used to have to dose every day . Has anyone ever used these?
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Old 06-16-2010, 09:21 AM   #2
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Can I get some more info? Manufacture?

There are a few FW mineral blocks out there but I would never put them in a reef tank...
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Old 06-17-2010, 08:12 AM   #3
Mr. Limpet
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I do not even know who makes it. He was like "I had these in my tank for eight years, there great ! Put them in and bring me a water sample next week"
He said the only thing they won't work with are acros.
People around town say he's a good guy I just hope he's not one of those used carp salesman.
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Old 06-17-2010, 08:28 AM   #4
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Lol at used carp dealer.
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Old 06-17-2010, 09:23 AM   #5
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Hiatt makes ph rock..It's basically calcium/mineral rock with alk/ph raising properties.
The thing about the ph rock they have is that you need a certain amount to equate to enough surface area since the dissolving rate is so low, you need half a pound for every gallon. The volume of it is very low (tightly packed) so 35 pounds is around 1 cubit foot. But if you just put it in the tank instead of behind the flow of the bio media (to utilize the acidic water output from the bacteria) then you have to use 2xgallons=lbs.

What is the brand/details of the product you received? Pics?
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Old 06-17-2010, 10:16 AM   #6
Mr. Limpet
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I don't know, the guy was just like, "here ya go, the answers to all your problems.... step right up........ and see the amazing gullible man.............. he will believe anything.....I know it was foolish on my part but the guy swears by it. If it messes up my tank I'll be doin a whole lotta swearin myself. I'm going there today to do tests and I will get more details too. He said you can't beat them for a softy tank which is where I want to be heading.
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Old 06-17-2010, 12:17 PM   #7
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Old 06-17-2010, 02:43 PM   #8
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I dunno, there's legitimate stuff out there that gets shot down by people who think it wouldn't work.
A calcium rock makes sense... I mean really people push Aragamax sand, but the dissolving point of that isn't at a high enough ph to make a difference in a SW tank, by the time the water is acidic enough to dissolve it, everything would probably be dead.
But people still suggest it
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Old 06-17-2010, 03:53 PM   #9
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Actually aragonite will dissolve slowly in the lower pH deep in a sand bed, but not enough to keep up will calcium demand, ususlly not even fast enough to maintain buffering. I would suspect the blacks are the same thing, even in a high water flow area I doubt that it will dissolve fast enough to keep up. I would be more concerned about not knowing exactly whats in it
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Old 06-17-2010, 06:11 PM   #10
Mr. Limpet
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I have about 250 gallons of water and after a week I'm right at 440. I know the wonder block sounds too good to be true but Hell,...... I will be the lab rat. So I did'nt have a chance to get to the lfs today so I will shoot for tomorrow to see what
It'stoofishy floaters has to say. Thanks for all the feedback
Ted
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Old 06-17-2010, 09:58 PM   #11
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Are they Sea-lab 28 blocks? You can see a pic here.
http://www.marineandreef.com/Aquariu...lock_s/138.htm
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Old 06-18-2010, 01:30 AM   #12
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I used something like that for a while. I think the blocks I used were manufactured by a SeaChem. I may be wrong on that. I will make a point of checking next time I go to my LFS. I know I dose my tank now with Seachem advantage calcium.
I was advised with those blocks that they will keep your calcium up well, but not to rely on it for anything else like carbonate or trace minerals.
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Old 06-18-2010, 09:20 AM   #13
Kungpaoshizi
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Lol if you read some reviews on the #28 blocks you can see more "omg it's snake oil!" claims.. heh

Keep us updated on that though, I would definately be interested in hearing your experience with it. The science behind it makes complete sense.
I'm sure it would take quite a bit of adjusting from the chemistry aspect to get the right balance of minerals per dissolving rate.. But it wouldn't be impossible..
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Old 06-18-2010, 10:50 AM   #14
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Looked this up on foster and smith all the reviews were positive?! I'm still skeptical but could be a legitimate product. Let us know how it goes.
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Old 06-18-2010, 12:58 PM   #15
ColdCoffee
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Quote:
Originally Posted by Jadinop View Post
Are they Sea-lab 28 blocks? You can see a pic here.
http://www.marineandreef.com/Aquariu...lock_s/138.htm
Yes Sea-Lab, thats the one I used.
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