Not sure about this media..

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Hi all, I bought what I thought was an almost identical media to Maxspect sintered glass bead type, but once it was delivered, and I had it in the tank, I saw the writing on the back of the box, and I wondered what you all think about this.
I was always told that media should be totally inert and not impart anything to the tank water, but this clearly shows that certain elements are given off, maybe the Maxspect does the same thing?
Your thoughts please.

semiroundel

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Reply #1

Obviously no one has any thoughts on this, no news is good news as they say....

ajm83

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Reply #2

Sorry dude,  never used this brand myself!
The only thing that jumps out to me from their list is zinc,  which is toxic to corals and hard to test for (you have to use an ICP test AFAIK).

I guess as long as you keep up with water changes you should be alright...
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semiroundel

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Reply #3

Sorry dude,  never used this brand myself!
The only thing that jumps out to me from their list is zinc,  which is toxic to corals and hard to test for (you have to use an ICP test AFAIK).

I guess as long as you keep up with water changes you should be alright...
@ajm83 , Many thanks for this Andy. At 100ppm should I be sending these tablets back? Or do you think it's too negligible to worry about-there was no indication before purchasing them that they would give off those elements. They are designed to include reef aquariums, and who knows, maybe zinc exists in sea water anyway?

ajm83

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Reply #4

Well I can't be sure what they're referring to there.  I guess that is the analysis of the blocks,  not what's ending up in the water (which i presume is happening very gradually).

For ref,  this is what zinc does at various levels.  (1ug/l  can be thought of as 1 particle per billion)

Courtesy of https://reefs.com/2017/03/10/be-careful-with-zinc-levels-in-your-reef/
Last Edit: Jun 9, 2020 11:20:14 am by ajm83
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Ratvan

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Reply #5

I can only assume that those are the total levels of trace minerals within the product? My issue would be the rate that they would be released into the tank. Any other information about this in the product details at all?

semiroundel

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Reply #6

Thanks for that, as I don't have anything in the tank at the moment, I'm not particularly bothered, but looking foward, I don't really want loads of Zinc released, but if that's total amount to be released, how significant is that amount? It doesn't sound too significant to me.
No other details unfortunately. Annoyingly, I didn't know about the elements until after I had bought it.

Ratvan

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Reply #7

Thanks for that, as I don't have anything in the tank at the moment, I'm not particularly bothered, but looking foward, I don't really want loads of Zinc released, but if that's total amount to be released, how significant is that amount? It doesn't sound too significant to me.
No other details unfortunately. Annoyingly, I didn't know about the elements until after I had bought it.

If the company has contact information I would try asking them about it.

ajm83

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Reply #8

You could just try them,  if you get unexplained coral loss then get a Triton or ATI ICP test done.  If that shows zinc is elevated then whip them out!
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semiroundel

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Reply #9

@Ratvan , @ajm83  I've sent them back. Chinese company and no mention of the elements it leached out in the advert, fortunately it was Amazon-bought, so easy to send back. What a nightmare!

semiroundel

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Reply #10

@Ratvan @ajm83 @Animal  As you know I sent back that media, I was about to buy some Maxspect blocks when I looked at a couple of videos on you tube and one of the comments on the Maxspect was that they give off silicates, do any of you know anything about this?
Of course I'll email them to check, but just wanted some anecdotal evidence.
I'll keep you all posted.
Update: Turns out they're in Hong Kong, email sent
Last Edit: Jun 13, 2020 5:14:38 pm by semiroundel

Ratvan

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Reply #11

Not my experience but this guy ordered an ICO test after 6 months of using it and the results look good

https://reefs.com/2018/03/07/reefs-com-review-maxspect-nanotech-bio-sphere/

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semiroundel

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Reply #12

@Ratvan Thanks, looks good, I'll wait for reply from them before committing, but tbh it all looks good.

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