Pawfly 20 Pcs Aquarium Suction Cup Clips 4 mm 3/16" Airline Tube Holders/Clamps for Fish Tank, Black 0.2"

Great quality stuff

They are amazing. Good price, good suctioning, well built. I used then for my aquarium air line and was also able to change the suction cups of my eheim heater mount. Recommend them to everyone, as i have tried a lot.

I ordered the 20pc and I was expecting to get 10 cups and 10 clips, but instead, I got 20 cups and 20 clips so that's okay with me! I won't need to buy more suction cups for quite some time.I needed a couple suction cups to hold air tubing but looking at the pictures, I also hoped that these would work for my Eheim Classic canister filter (model 2217) to hold the clips that attach to the intake and spray bar. The Eheim suction cups are stiff, flatten over time, and are a bit pricey at $3+ each (and that's JUST for the cup part and not the clip part). I received these cups earlier this week and was able to pull out the airline clips and stick the clips for my Ehiem intake and spray bar into these cups and FINALLY my spraybar is supported and will stay put! I really wasn't looking forward to buying the Eheim suction cups again and now I'll never have to.These cups are really soft and have good suction, maybe they will stiffen over time but I feel like it was a great deal for the price and there are so many that replacing them if I need to won't be an issue. I'm also very happy they work for my Eheim filter. A few of the cups don't look exactly round but if soaked in warm water (as suggested) then they may reshape a bit.

I replaced my suction cups ×3 and the tube keeps slipping. Have had tube placed for my fish for over three months without dlippage for three months. Put new suctions on and slipped ×3 my ghost knife gets stressed cant have that need better suction.

Bought a *brand* new acrylic fish tank, layed out meticulously ran air lines, and immaculate routing of multiple air stones making one of the cleanest setups ive done to date. Did a dry run before adding water and left a few cups stuck on while i went to sleep. Was experimenting with different placements of the cups so i had some higher and some lower and just seeing what looked and worked the best. Left them there and this was a mistake.Over night, something terrible happened. I took the cups off the next morning to proceed with the project. Saw there was what looked like water rings like a condensated glass cup would leave on a wood table, but it could not wipe off. Running my finger over it you can feel its been frosted. Etched by some weird chemical reaction that ate into the aquarium walls and Permanently etched it in all places the cups made contact. VERY DISAPPOINTEDAlthough i must give credit where credit is due. They cups stuck nice and tight. One did fall off at some point that evening, but still stayed long enough to etch the walls. They were soft and supple, but apparently the oily coating on the cups is an acrylic destroyer and will remove any clarity in all places the cups are touching. Visually ruined a brand new tank. And thats a legit bummer. Didnt see that coming. Plastic tank? AVOID THESE CUPS!!! Glass? these should do a great job.