Aquarium Filter for 55-150 Gal. Tank Crystal 300GPH Biochemical Filtration Powerful Pump Submersible Internal Fish Tank Filters Large Tank Pond Clear Wavemaker Air Supply 4 in 1

Great pump i used it along with aquarium scrubber glassing fabric to keep my homemade icebath clean. I would unplug when entering for safety and it saw quite a bit of use and abuse. I accidentally left it out side before i moved recently and it got full of bugs so i trashed it but will buy another.

Ive had it for over a year now, i use it with my canister filter and my tanks water stays within perfect range. The extra biofilter helps keep the nitrogen cycle consistent, even if we do a large water change. Gteat value. The only thing i don't like about it is that my Oscar still isnt used to the fast moving water, but without it in the tank she was starting to develop hole in head. It's pretty much in remission and she's healthy enough to fight the filter at night.

Great product, pretty large, easy to set up, makes a pretty big current in my 65 gallon tank, doesn’t leak, pretty quiet

My turtles love this filter, so much that they will take turns laying by the outflow just floating by it. It is super quiet, doesn't rattle, and from one side of the tank to the other side isn't overpowering that it moves items out of the way the flow rate is just right. Its sizing is perfect for a 40 gal tank, which is what I have. Its ease of use and ability to take apart to clean is even easier. The durability of it has been wonderful!

Very powerful filter with an intuitive air flow rate control tube. This filter is more high maintenance when you have a sand substrate. Will purchase again when I upgrade my tank.

I purchased this Aquarium Filter for a 40–150 gallon tank expecting a powerful, reliable filtration system, but it turned out to be completely defective. Right out of the box, the pump barely worked and made loud, grinding noises. After a short time, it either stopped running altogether or had extremely weak flow—nowhere near the advertised 300 GPH. The “4 in 1” features are misleading. The biochemical filtration is ineffective, the wavemaker function is inconsistent, and the air supply barely produces bubbles. Instead of keeping the tank clear, the water became cloudy, and debris was not properly filtered. I had to replace it quickly to protect my fish. Build quality is very poor. The plastic feels cheap, the suction cups don’t hold, and the unit frequently detaches and shifts inside the tank. For a product advertised for large tanks and ponds, this filter is completely unreliable. I do not recommend this filter at all. It’s overpriced, poorly constructed, and potentially dangerous for your aquarium if it fails unexpectedly. Save your money and choose a more reputable brand.

The water jet out of this is STRONG! Got it for a 55 tall tank, it definitely circulates the water with a fast current. I would not recommend if you have small fish that like calmer water, like tetras. The double sponges are great at catching debris, and they are easy to clean. Overall this is a great product at a great price, just be warned that you shouldn't use with small fish that don't like fast currents.

The pump is no louder than my Aqueon without the rattling lid from time to time and it is wonderful not having to change filters so much. I have a 55 gallon aquarium and was looking fir something slim that won't sound like Niagara Falls when the water level drops . 4 inches. It's only loud when you open the air flow nozzle so I keep it off. At first I loved the way the plants swayed with the water, but I've realized the fish are hovering close to the filter cause it's where the current is weaker. I got the 40 to 150 gallon punp and idk how this is, supposed to cover that wide if a gallon range. This should only be for a 100 to 150 gallon tank. Luckily I got the next size, down for my 40 gallon aquarium so I'm going to use that one instead. I was hoping there would be a flow adjustment but it doesn't. It actually ripped one of my plants from the gravel substrate.

Not Working - Used Product

This thing is a powerhouse. It gets the job DONE. Taking it apart to service it is incredibly easy, too. Yes, it's a bit loud but with how much water it moves that's not surprising. And at this price I think it's well worth it, it's an absolute beast!!

It works wonderful, but not so easy to clean for a turtle tank. Plus the oxygen line never stays up or out of the water, so it’s really of no use. And a bit to strong of water flow then I had wanted but it keeps it clean for the most part.

Very powerful if you're looking for a power head it is on par with others of similar power. The aeration system is really nice as well for specific types of fish, or river like setups. My plecos like oxygenation and this does the trick. The filter media provided is a decent course media, probably won't take out finer particles. However, it looks easily replaceable with other types of media. It does hum loudly when you really stop and listen. But for the price it's really the only thing I don't like, and easy to get past that. The airline was kinked. The diffuser they send cracked when I tried to install it on the airline. But really those are super cheap to find elsewhere. Best as a secondary filter/power head. Not bad for the price though Pros -Doubles as a power head -Good aeration system -Easy to clean and disassemble Cons -It hums fairly loud -Airline and diffuser sent are basically garbage

Very effective in keeping tank clean. Not to noisy. Only it would be nice if you could adjust the flow.