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post #1 of 18 (permalink) Old 02-10-2014, 04:17 PM Thread Starter
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Lead question

I bought some plant from my LFS and it came with a lead weight just wanna know if it is aquarium safe, i am experimenting on something and i wanna use it as weight. :-)

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post #2 of 18 (permalink) Old 02-10-2014, 04:49 PM
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Get ready for a debate... Personally, I use them.
Hell I have 15lb cannon ball in a ziplock bag wheighing down a price of drift wood.
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post #3 of 18 (permalink) Old 02-10-2014, 04:51 PM
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post #4 of 18 (permalink) Old 02-10-2014, 05:11 PM
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I personally don't buy the lead non-toxic everyone knows lead is toxic why would i want it soaking in my fish tank? I mean do you wanna stir every drink you have or eat every meal you eat off of lead?
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post #5 of 18 (permalink) Old 02-10-2014, 08:27 PM
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There's a reason why all brass pipe fittings and pipes are now mandated by law to be lead-free. Lead is known to be a contributing factor in violent behavior due to the damage it causes to the brain. It's a neurotoxin and is known to cause headaches. I wouldn't put lead weights in the water because that allows the lead ions to dissociate and become toxic. It's only "non-toxic" if you don't touch it. That's really slick marketing and preys upon people's ignorance of chemistry.
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post #6 of 18 (permalink) Old 02-11-2014, 01:40 AM
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Quote:
Originally Posted by Solcielo lawrencia View Post
There's a reason why all brass pipe fittings and pipes are now mandated by law to be lead-free. Lead is known to be a contributing factor in violent behavior due to the damage it causes to the brain. It's a neurotoxin and is known to cause headaches. I wouldn't put lead weights in the water because that allows the lead ions to dissociate and become toxic. It's only "non-toxic" if you don't touch it. That's really slick marketing and preys upon people's ignorance of chemistry.
It's a bit different in plumbing though. With running water and 2 dissimilar metals you get electrolysis. In effect it creates a low level battery. Not really a factor in a tank since there really isn't a more noble metal.

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post #7 of 18 (permalink) Old 02-11-2014, 03:12 AM
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It's a bit different in plumbing though. With running water and 2 dissimilar metals you get electrolysis. In effect it creates a low level battery. Not really a factor in a tank since there really isn't a more noble metal.
This is the substantive point in the debate I believe.

Lead's solubility in water is minuscule w/o this.

That being said, is it toxic? Yes, undoubtedly.

Do I use it? Occasionally, but as little as possible. I have never seen problems from its use, but I figure it is likely better to not use it. No justification. I am guessing there is little real risk if you do reasonably frequent water changes.
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post #8 of 18 (permalink) Old 02-11-2014, 01:26 PM
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No, I would not. Lead is toxic. Use steel or another notoxic metal. Why risk it???

Read "Ecology of the planted aquarium".
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post #9 of 18 (permalink) Old 02-11-2014, 05:31 PM
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On these questions where we compare fish to human, there are often so many different things involved that it really just doesn't apply. We have discovered lead does damage human brains but that was only after many centuries of using lead for water pipes as well as dozens of other things. So now the question whether it is safe for fish. Do I want to risk my fish becoming crazed animals and attacking me in the middle of the night? Or do I want to make my tanks work using the easy methods that have been used for a hundred years?
I go with the easy and will throw the fish out if he orders a gun or knife online!
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post #10 of 18 (permalink) Old 02-11-2014, 06:32 PM
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On these questions where we compare fish to human, there are often so many different things involved that it really just doesn't apply. We have discovered lead does damage human brains but that was only after many centuries of using lead for water pipes as well as dozens of other things. So now the question whether it is safe for fish. Do I want to risk my fish becoming crazed animals and attacking me in the middle of the night? Or do I want to make my tanks work using the easy methods that have been used for a hundred years?
I go with the easy and will throw the fish out if he orders a gun or knife online!
LOL

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post #11 of 18 (permalink) Old 02-11-2014, 07:09 PM
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I still use lead weights for fishing. And I still crimp with my teeth. (Well at least the teeth I have left) Being in the printing industry and setting hot type the shop I worked at had a smelter. I can't tell you how many tons of lead I melted down. All the pots in the machines were open. NO. I don't have 3 eyes.

Dilution is the solution for the pollution.
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post #12 of 18 (permalink) Old 02-12-2014, 01:03 AM
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It's entirely possible those aren't lead weights wrapped around those plants. They may actually be the non-lead weights which can be bought online and are fish safe. I bought some myself to help hold down plants. I have no worries about using them. I think a lot of plant retailers are now using the non-lead weights but I guess it would depend on where the LFS got their plants.
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post #13 of 18 (permalink) Old 02-16-2014, 09:01 PM
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Lead weights are illegal for fishing

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post #14 of 18 (permalink) Old 02-16-2014, 09:29 PM
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Lead weights are illegal for fishing

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Where? Its still legeal in California, and we are always first to ban everything. You may be misinformed. Lead free amunition i can see...
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post #15 of 18 (permalink) Old 02-16-2014, 09:31 PM
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Lead weights are illegal for fishing

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Not in the three states I fish in.

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