• Welcome to TONMO, the premier cephalopod interest community. Founded in 2000, we have built a large community of experts, hobbyists and enthusiasts, some of whom come together when we host our biennial conference. To join in on the fun, sign up - it's free! You can also become a Supporter for just $50/year to remove all ads and gain access to our Supporters forum. Follow us on Twitter and Facebook for more cephy goodness.

Copper question

m8298

Cuttlefish
Registered
Joined
Feb 11, 2004
Messages
21
I have an acrylic tank I picked up used. Is there a way to tell if copper has been used in it before? Is the concern the same with acrylic tanks? I have always heard that the copper stays in the seams, that's why I ask.
 

Jean

Colossal Squid
Registered
Joined
Nov 19, 2002
Messages
4,218
I don't think there is any way to tell. Can you ask the previous owner???

Copper does stay in the seals and there is no way to get rid of it. If there is any chance at all that copper has EVER been used in this tank don't use it for invertebrates especially not cephs!! Get a new tank or a copper free certified one!!!!

J
 

Colin

TONMO Supporter
Registered
Joined
Nov 14, 2002
Messages
3,985
you could fill it with fresh water, leave it sitting for a couple of weeks and then use a copper test?
 

m8298

Cuttlefish
Registered
Joined
Feb 11, 2004
Messages
21
I'd didn't know the original owner.

That's a good idea Colin, I think I'll try that. The reason I mentioned the seal, is that acrylic tanks are fused together, so I don't think it would remain in the seal.
 

Colin

TONMO Supporter
Registered
Joined
Nov 14, 2002
Messages
3,985
right, i missed you saying it was acrylic... but its worth checking for copper either way... just in case :smile:
 

Jean

Colossal Squid
Registered
Joined
Nov 19, 2002
Messages
4,218
Try the Colins freshwater idea......I'd missed the acrylic bit too :bonk:. But be really careful. We have some acrylic display tanks and while we never use copper we had put some iron chain in one (for a human impact display) and the acrylic absorbed some of the iron (don't ask me how!) The acrylic is still stained nearly 2 years later!!!! I s'pose copper may stain acrylic bluish/greenish....but is it worth the risk?


Cheers

J
 

m8298

Cuttlefish
Registered
Joined
Feb 11, 2004
Messages
21
How wierd... I've never heard of acrylic staining like that. Thanks for the input.

I just really like the idea of acrylic for an octo tank, I 've got an idea to make it escape-proof. I plan to drill through the top of the back side for two 1inch bulkheads to act as my overflow (I have the ones with the cover over them) and one 3/4inch bulkhead for my return from the sump. Then, I will have an acrylic, hinged top that I will attach to the top of the tank with nylon thumb screws.
 

Forum statistics

Threads
20,862
Messages
206,766
Members
8,458
Latest member
AuroraVK

Monty Awards

TONMOCON IV (2011): Terri
TONMOCON V (2013): Jean
TONMOCON VI (2015): Taollan
TONMOCON VII (2018): ekocak


Top