New Tank: When to add Marine Pure Block?

[Randy Holmes-Farley Verified Community Expert]

Does a poly filter remove AL effectively?

I do not know. They claim to remove aluminum, but that might be from fresh water only, and they claim it turns red when doing so, which seems quite unlikely to me since aluminum ion is never itself colored in any form.

Aluminum in seawater is quite unlike other metals. The forms present are neutral Al(OH)3 or negatively charged Al(OH)4-.

 

[Big G]

They started with water that was already high in aluminum

Wow! That's it. I'm tossing mine as soon as my new batch of chaeto & sea lettuce is ready. That's not just a sneaky thing to do, but down right unethical.

 

[Tobbe]

Does a poly filter remove AL effectively?

Dont think so i have 2 blocks brand new and put em in a nano tank little tunze and a polyfilter to se if i could cure the blocks as i notice in my older tanks AL keep getting down i am sure they release alu as i notice increase on my triton test
I don't now if i can cure em to get less alu then i place em in my sump and wanted to se if polyfilter turned red and i haven't in 2 months and i am sure alu levers are high in this little nano

 

[VR28man]

Wow! That's it. I'm tossing mine as soon as my new batch of chaeto & sea lettuce is ready. That's not just a sneaky thing to do, but down right unethical.

Did you read the article? The allegation, the way I (mis?) understand it, is that brand of salt mix already has high amounts of Al, and that the mp somehow reduced the amount. (Not that I think cermedia is necessarily right, just that I don’t think that throwing it out immediately is warranted)

Fwiw, a seperate thread seemed to indicate that one dude who was using rscp (only salt i care about ) and phosguard had even higher Al levels than in cermedia’s test, So I wouldn’t necesarily dismiss their assertion that some salts may contain high amounts of Al.

https://www.reef2reef.com/threads/my-results-rscp-tank.179048/

Here’s another discussion about the levels of different trace elements in different salts. I just skimmed this, and I’ve not had the opportunity to read it in depth. Sometimes it’s hard to read because the author is Polish. Nevertheless, I am very impressed with his ability to use English this well.
https://www.nano-reef.com/forums/topic/376194-long-salt-comparision/

And as for me, I don’t have my nitrates, alk, and phosphates under control to my satisfaction yet. And, I want to do it slowly, without doing many things that will greatly alter the water chemistry There’s no way in heck that I’m worrying about aluminum right now.......

 

[Jerry Ebner]

I was happy to see this thread , 2 year reefer and was going try add the marine pure but I got plenty of rock so I'll hold off. One thing is a was thinking of seeding my new tank with bacteria from the old tank.. But I went dry rock dry sand so wouldn't I transfer the pests that I'm trying to avoid?

 

[Tobbe]

i added the 2 blocks to my sump have already 4-5 plates and wait little more for a new triton test and se if it have changed in AL
i don't think its something to worry about