Diffuser suction cups - The Planted Tank Forum
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post #1 of 4 (permalink) Old 01-12-2013, 02:24 PM Thread Starter
Algae Grower
Join Date: Jul 2010
Location: Illinois
Posts: 44
Diffuser suction cups

The suction cups on my atomic diffusers only stay stuck to the glass for about 2 minutes before coming loose. Any suggestions on getting them to stay? I may have to weigh them down if I can't get them to stay.
jrflanagan is offline  
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post #2 of 4 (permalink) Old 01-12-2013, 10:54 PM
Planted Tank Guru
Join Date: Jul 2008
Location: East Lansing, MI, USA
Posts: 2,710
I've tried every brand aquatic suction cup replacement I could get from online suppliers and none of them last a year in my water which is neutral city water at 7.0 out of the tap.
The suction cups from $1 stores last a couple of weeks. 3M light mounting suction cups fail quickly under water.

What I'm using now is the Zoo Med MagClip® Magnetic Suction Cups Price is awful, but you should only need one.

If you decide to DIY using hard drive magnets, wrap them in something like felt. Those magnets are are powerful enough, that if one snaps against the glass, it could create a crack.
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post #3 of 4 (permalink) Old 01-12-2013, 11:03 PM
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Join Date: Aug 2003
Location: NM
Posts: 1,154
Rare earth magnets or silicone suction cups. Vinyl will harden over time...too short a time.
gaussboys has magnets.
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post #4 of 4 (permalink) Old 01-12-2013, 11:08 PM Thread Starter
Algae Grower
Join Date: Jul 2010
Location: Illinois
Posts: 44
Thanks for the advice
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