Aquarium Filter for 40-150 Gal. Tank Crystal 300GPH Biochemical Filtration Powerful Pump Submersible Internal Fish Tank Filters Large Tank Pond Clear Wavemaker Air Supply 4 in 1

This is the best filter I’ve ever owned. I have a 75 gallon fish tank that had been without a filter for a couple of months; I put this filter in and when I woke up the next morning the fish tank looked 70% better. By night, 24 hours, my tank was crystal clear and the fishes had the zoomies!The water flow is pretty high even when adjusted on low but it’s a solid 10/10 and the best part is that you don’t hear it running. I’ve owned quite a few fish tank filters and this one beats the others in price, quality, and maintenance! Highly recommend.

We have a 40 inch tank, and I was skepticalAt first about using this product because we were already cleaning the tank about every 4-7 days. I honestly didn’t think it would work and it would be more of a hassle of cleaning the filter and tank! Not the case, we clean our tank about every 3-4 weeks, filter is not not loud. The pump quality is great, it doesn’t leak and you can control the pressure! P

This filter works wonderfully. It Keeps my 55 gal tank clear.It's really powerful, yet quiet and It's priced very reasonably. I will definitely be purchasing more of these filters from this seller. And oh let me add, I recieved this filter within 1 day, so service was fast and professional. Thank you.

I have a 150 gal. Stock pins for my koi fish and bought this to help circulate the water.I really wish it had some kind of attachment to slow down the powerful water flow but it doesn't. It's lowest speed is still too strong.It is definitely noisy so in addition to the beautiful sound of water falling from my fountain box filter, I also now hear a humming sound that will take some getting used to.Haven't decided if I want to keep it or not because if it DOES actually help my main filter keep the water clean then it'll stay, if not I'll be returning it.Just got it today and had to do a water change so all it's done so far is stir up a ton of waste from the bottom of my pond, but it'll be on 24-7 with the box filter as well, and now we wait!I'll come back and update!

I love the size, power and how good it works in my fish tank...... I'm getting water clarity, retention and the noise level is amazing

The media could not be loaded. So first of all, when I plugged this in, the force with which it filtered the water was enough to knock it off the wall even with all three suction cups in place. This had as much to do with the power of the pump as it did with the terrible suction cup placement, as the cups only anchor the pump, but not the filter itself. This caused the outflow tube to function as something of a jet engine, sending the whole apparatus launching into the aquarium, secured in place only by the power cord.Even closing the air valve to its lowest flow rate, this thing is WAY too powerful. The listing has it at 40 to 150 gallons. My aquarium is 75 gallons, and even submersed fully in the water, the force on this thing was so high that water coming out of the pump was spraying out aquarium and splashing on my walls.While frantically trying to remove this from my tank, the air tube fell into the tank, resulting in a "water in, water out" jet action that caused the whole filter part of the apparatus to spin violently in circles and wrap the air tube around itself.Finally, as I was removing this, the filter portion came detached, leaving the pump...gear?...exposed. This was also spinning aggressively as I hadn't yet unplugged the device. This in turn caused some pieces of the pump to fall apart in my fish tank, where they will remain until I can fish them out. And yes, I should have unplugged the pump first, but honestly the thing came apart so easily, and the pump is so aggressive, that I would be concerned that the filter could come off on its own anyway under normal operation, exposing the death gear to the fish in the tank.Oh, also, the instruction sheet is bad, even for translated instructions.Attaching some photos and videos...ignore the laughter and commentary.0/10 would not recommend for keeping fish tank clean and health, but 10/10 provided some great slapstick comedy.

I’m missing the air filter too to make the bubbles other than that product is good

This is our 3rd one for another tank...Since buying the 1st one for our turtle tank. We decided to put these in all of our aquariums the water stays crystal clear, easy to clean, is some what a little loud but we have gotten use to..highly recommend..