IM getting pretty pissed having to re-attach them everytime i walk by.... i tried razor blading the glass, washing the suctioncups, all that good stuff. is there something like veg oil, or something weird that i wouldnt think off?

If you don't plan on moving them, put a dab of silicon on each one. Depending on what it's for, you can also use a mag float or fashion an acrylic bracket.

I tried silicone at one time, however, I noticed the silicone doesn't stick at all (and I mean at all) to the rubber that the suction cups are made of ... however, I did come up with a solution that hasn't failed me once yet ... silicone lubricant. Looks and feels just like vaseline (but doesn't destroy rubber like vaseline does) and it's food/fish safe. You can usually find it in the plumbing section of Home Depot, etc. Just smear a tiny little bit of it on the back of the suction cup and stick it on ... now mind you I stuck all my suction cups on before fully filling the tank but I doubt this makes a difference.

Harry

Silicone lubricant can be purchased at certain drugstores, and is fantastic for other underwater activities as well.

Can you post some pics?

IME there are two types of suction cups (is that the scientific name?) -- those that work and those that don't.

Some are made out of hard plastic which hardens further after a while in water, and then there is no sucking anymore. Others are made out of soft rubber and continuously stay put.

So maybe shop around for some better sucking cups.

But yes, silicone grease will tremendously increase sucking power.

Petroleum jelly.

Thanks for the great new sig, Wass!

But yeah, I agree you should buy some different ones, my clear rubbery ones never come off to the point of driving me mad. Make sure the glass is super clean, too.

Oh my, hope you find a better one soon.

Awe c'mon... better?

Thank you!

NP

Petroleum jelly (or vaseline) will harden and destroy real rubber over time ... better off using silicone grease or lubricant.

Harry