Aquatop Aquarium Surface Skimmer – 65 GPH Flow Rate – Efficient Waste Removal – Ideal for Tanks Up to 100 Gallons – Ideal for Freshwater & Saltwater Compatible

It does what it's suppose to, keeps the water surface crystal clear. Avoid putting it in max to avoid micro bubbles from coming out. I keep mine a little over half and it sucks pretty well. For those that gave negative comments about the suction cups, you need to clean your aquarium walls. Algae and/or anything slimy on the aquarium walls will affect the suction. Don't blame the product or seller, you need to clean your tank. I've had zero issues with the suction cups and the device itself. I had bought an Oase skimmer for $39, that was ridiculous, I got this one for half the price and works even better. The oase was a mission to stop the microbubbles from coming out. I would buy this product again.

To be honest, I bought tjis item by mistake think I'm buying a name brand. However, I do not dislike the skimmer. It works very well and clears film on the surface in a minute for a 20g long. 0 noise. Install is easy, just stick it in the tank and plug it in. Value foe money well worth it. Only problem i have is tinkering with the water lvl, especially if you have ta k with the plastic rim. I lucked out as I rub it 1/4 below the rim, otherwise it won't work. The ubit needs to be about 1-2 mm abive the surface for it to work.

Anyone who has seriously been into aquarium keeping will relate to the horrors of duck weed. How it chokes out the light, overwhelms the aquarium, ruins your other floaters and gets into and onto everything. Try to net it out? Good luck soldier! This slippery, sneaky, evil floating weed skitters away and you can never get it all. I needed a way to eliminate it that did not involve tearing down every aquarium to the foundations and starting over. This little gadget does the job! Sucks in the duck weed that you missed with the net and hand picking, murders that nasty stuff. I used it to clean out two totally infested tanks last night. My big beautiful frog bit plants I would just dunk under the water and give them a shake to loosen up the attached duck weed... it would float to the top, thinking it was free at last to continue it's evil mission of world dominance... and be promptly sucked into this God send device! Now I am not going to leave it running in any of my tanks full time since they are shrimp and snail tanks where the device could end up covered in snails or sucking down some shrimp - but it was perfectly safe to use in a supervised fashion as I did. I knew though, that as evil as duck weed is, I would need to be vigilant over the coming days to ensure it was fully eradicated. This morning, a careful examination of the 2 tanks I purged last night revealed only 5 little tiny leaves of duck weed that had escaped... they were promptly snatched out and disposed of with vengeance. I will continue to watch and purge for every single tiny leaf that may have escaped. This is the first time I feel truly hopeful, the first time I feel that I may very well have just won the battle against the evil incarnate that is duck weed. If you too wish to win the fight, get this device!

Unless others received a different product or one that was faulty, I don’t understand the negative reviews. This isn’t my main filter (I have a canister on my 40 breeder) so it’s mainly used for biofilm cleaning. I do not have a lid on my tank and it is well stocked and planted, so surface dust, hair, and oil is expected. This cleans it up in minutes. The suctions cups are solid. The floating intake has never stuck. It is so quiet I don’t even know it’s on. I have it set on the lowest setting and on a timer (20 min twice a day) and it has kept the surface noticeably cleaner. I have not had any issues with fish or shrimp being pulled into the filter but only running 40 min per day should hopefully avoid that. I anticipate having to clean the filter often as it is quite small, but the top comes off easily without having to take any suction cups off. I would 100% buy this again and will definitely recommend to anyone with biofilm or dirty water surface issues

Pros: A beast at removing fish oils at the top of the water Won’t remove bigger floaters but will duckweed Easy to install and good quality Suction cups are very strong (could be negative) Cons: Easily easily clogged up when trying to remove large amounts of duckweed (very annoying with the strong suction cups to try to empty it out) Produces a jet stream of water on the side (very bad for smaller tanks)

Had a bunch of stuff floating on water surface of my 75g cichlid tank (running a canister filter). This unit cleaned the surface very well after only a few hours. Suction cups are almost TOO god, lol (i had a hard time freeing from glass after i wasnt happy with my initial location i chose...). I do shut it off during feedings, as the surface food accumulated on top of the sponge filter in the unit almost immediately. Dont need to create a new problem... For the price, this unit is a no-brainer.

stop working after 3 days