Frag rack

moseley75 · Aug 22, 2017

What brand of magnet should I use to make a frag rack?

Thanks
Tom.[emoji41]

nautical_nathaniel · Aug 22, 2017

There are coated magnets that are housed in a rubberized material or coated in plastic. These would probably work best. You may also find some "marine grade" magnets somewhere but I suspect that they would be a bit more expensive than regular coated magnets.

RUNVS · Aug 22, 2017

https://www.amazon.com/gp/product/B06XXPJLBF/ref=oh_aui_detailpage_o08_s00?ie=UTF8&psc=1

I bought these from Amazon to glue frags to and have on the side and back of my tank. They are coated in Polypropylene

Twisted_Blenny · Aug 23, 2017

RUNVS said:
https://www.amazon.com/gp/product/B06XXPJLBF/ref=oh_aui_detailpage_o08_s00?ie=UTF8&psc=1

I bought these from Amazon to glue frags to and have on the side and back of my tank. They are coated in Polypropylene

it shows they are also coated in nickel-copper coating? i would be nervous copper would leach out into the water?
have you had any issues? how long have u had them in the tank?

cromag27 · Aug 23, 2017

http://octoaquatics.com/octo-pods/

cromag27 · Aug 23, 2017

Those are NOT reef safe.

Twisted_Blenny said:
it shows they are also coated in nickel-copper coating? i would be nervous copper would leach out into the water?
have you had any issues? how long have u had them in the tank?

moseley75 · Aug 24, 2017

cromag08 said:
http://octoaquatics.com/octo-pods/

At first glance these look great. Before using them you should read their disclaimer. After reading it I think I'll keep looking.

cromag27 · Aug 24, 2017

What's wrong with the disclaimer? Its there for a purpose.

RUNVS · Aug 24, 2017

Twisted_Blenny said:
it shows they are also coated in nickel-copper coating? i would be nervous copper would leach out into the water?
have you had any issues? how long have u had them in the tank?

I have had them in the tank for about 3 months and haven't noticed anything adverse, the nickel copper nickel is under the plastic, I would think as long as you dont damage the plastic around the magnet it would be fine. I would also think that the frags that I have glued to them would have died by now if the copper was leaching thru the plastic.

cromag27 · Aug 24, 2017

The problem with those is that the plastic casings crack over time and develop leaks. The magnets will then start to corrode, but you won't know it because you can't see the magnets. I've tested numerous types of neodymium magnets over the years and had issues with all of them. That's why I started making my own.

Also, read this article for more info:

https://www.reef2reef.com/ams/magnets-and-your-tank.233/

RUNVS · Aug 24, 2017

cromag08 said:
The problem with those is that the plastic casings crack over time and develop leaks. The magnets will then start to corrode, but you won't know it because you can't see the magnets. I've tested numerous types of neodymium magnets over the years and had issues with all of them. That's why I started making my own.

Also, read this article for more info:

https://www.reef2reef.com/ams/magnets-and-your-tank.233/

Good Article! Makes sense that over time the casing can become weak and brittle, Really Acrylic casing would be the way to go right? because acrylic wont become brittle over time as it used for tank contruction

cromag27 · Aug 24, 2017

Correct. And mine are clear so if they did happen to leak, you could see inside for any oxidation of the magnets.

RUNVS said:
I have had them in the tank for about 3 months and haven't noticed anything adverse, the nickel copper nickel is under the plastic, I would think as long as you dont damage the plastic around the magnet it would be fine. I would also think that the frags that I have glued to them would have died by now if the copper was leaching thru the plastic.

RUNVS said:
Good Article! Makes sense that over time the casing can become weak and brittle, Really Acrylic casing would be the way to go right? because acrylic wont become brittle over time as it used for tank contruction