Marine pure leaching aluminium?

[Peach02]

So I’ve done some more research into media for tanks. And ran into claims marine pure leeches aluminium into the water especially if moved.
Does anyone have experience with this? And are the mantis blocks a good alternative?

 

[Beane71884]

So I’ve done some more research into media for tanks. And ran into claims marine pure leeches aluminium into the water especially if moved.
Does anyone have experience with this? And are the mantis blocks a good alternative?

Mine leached AL. I did an ATI water test back in October that revealed elevated AL levels so I removed it. I'm going to do another test in the next month or two to check the new levels. I have no intention of using another type of block in it's place.

 

[Peach02]

Mine leached AL. I did an ATI water test back in October that revealed elevated AL levels so I removed it. I'm going to do another test in the next month or two to check the new levels. I have no intention of using another type of block in it's place.

What are you doing instead of media?

 

[Beane71884]

Clearwater ATS. My nitrates were bottomed out anyway so ditching the block was needed regardless of Al. Even with it out, I’m still needing to dose nitrates.

 

[pdxmonkeyboy]

Brs did a video... they leach aluminum
End of story.

 

[Peach02]

Brs did a video... they leach aluminum
End of story.

Can you send me the link?

 

[Magellan]

Brs did a video... they leach aluminum
End of story.

Just the blocks? Or all forms of their media

 

[Jeeperz]

The question is, does the leeching aluminum affect anything. I've read threads here that say the increased aluminum had no effect on the tank. I've also read that treating them like curing rock eliminates the problem. Is either true, I don't know. Maybe Randy knows the answer. On another note, I don't blindly follow BRS videos as they are not always correct, like the salt test videos.

 

[Magellan]

The question is, does the leeching aluminum affect anything. I've read threads here that say the increased aluminum had no effect on the tank. I've also read that treating them like curing rock eliminates the problem. Is either true, I don't know. Maybe Randy knows the answer. On another note, I don't blindly follow BRS videos as they are not always correct, like the salt test videos.

Also, wouldn’t activated carbon be able to absorb whatever minimal amount leeched into the water? (If any)

 

[pdxmonkeyboy]

Sorry, not a video.

Is Marine Pure effective at reducing nitrates? We learn some valuable lessons. | BRStv Investigates

I would like to see results with a sump packed with Marine Pure blocks. My meaning being a sort of extreme deep sand bed effect. Top layers with aerobic bacteria, and blocks 3 layers deep or so harboring anaerobic bacteria. Theoretically The top layers would have a faster water movement out of...

www.reef2reef.com

 

[Randy Holmes-Farley]

Also, wouldn’t activated carbon be able to absorb whatever minimal amount leeched into the water? (If any)

i would not assume that GAC binds aluminum from seawater. It’s reallly not good at binding most metals, but many metals bind to organic matter that itself binds to GAC.

 

[Randy Holmes-Farley]

Just the blocks? Or all forms of their media

Complicated question. Some folks claimed the material most readily shown to release aluminum was actually counterfeit material. Some said it was a bad batch. Done folks reported theirs was crumbling to bits, others not so. Is the released aluminum toxic? Is it soluble Al+++, or some fine particulate form??

I personally would avoid all aluminum oxide and related products unless they are something you already have. I don’t know of anything they do that cannot be done easily in other ways.

 

[esther]

I have a bunch of them in my refugium. Just got an ICP test done and Al levels are nothing to worry about. Going to keep an eye on them just to be sure. Thanks for the heads up.

 

[tmorford]

The question is, does the leeching aluminum affect anything. I've read threads here that say the increased aluminum had no effect on the tank. I've also read that treating them like curing rock eliminates the problem. Is either true, I don't know. Maybe Randy knows the answer. On another note, I don't blindly follow BRS videos as they are not always correct, like the salt test videos.

I am interested to hear about the sat test videos ? What are your thoughts?

 

[Randy Holmes-Farley]

I am interested to hear about the sat test videos ? What are your thoughts?

What videos?

 

[Jeeperz]

What videos?

I think they meant salt test videos from brs

 

[tmorford]

What videos?

It was implyed that the BRS salt test videos were inaccurate or unreliable. I wanted hear more about that.

 

[Randy Holmes-Farley]

It was implyed that the BRS salt test videos were inaccurate or unreliable. I wanted hear more about that.

OK, I understand. I've not looked at those.