Fluval Flex 9 Aquarium Kit - Fish Tank for Fish & Plants - Comes with LED Lights, Filtration System & More - 36" x 18" x 18" - 34 L, 9 Gal. - White

I have two of these. I liked the 1st one so much, that I added another within the month. I have currently have four Tanks in my Living Room. The built in filters on these are okay, (but) you need to make sure to pull the pumps each time you clean them and remove the pump filter and clean it as well. (Easy to do.) If you do not do this, the water flow will go down considerably reducing thecoverall Filters systems effectiveness. I really like the design of the tank. The included hood and lighting system are nice and you get tons of different lighting options. It is quite easy to add supplemental filters to this set up. I would buy this Fish Tank System again.

I love this tank it's big enough too be seen but small enough to use in my small studio without taking too much space. It is so perfect for my little shrimp it's sturdy I've added the feeding door and a backup pump just in case of burnout because snails have a tendency too get stuck and you won't have a decent flow .10 out of 10

Problems with this tank setup: Lid locks around almost all sides with very little opening for cords and hoses in the middle of the back. It also does not come with lid props and is a hassle to take on and off every time you have to move a plant, do a partial water change, or clean the filters. The light that is installed in it is very short and narrow so does not fully light the living area. The light also is very limited- no 8 or 12 or 24 hour cycle settings, You can blend the white and RGB so it is 'mostly' white with one color (turn on the white light, reduce it to low, then turn on the RGB and select a color, then turn the white light back up), but without the cycle setting it is a manual hassle. The remote only works if you use it directly pointed at the sensor. The pump is way to strong for Betta fish or other fish that aren't strong swimmers. The pump clogs easily and the tank does not come with a filter block (nest) to put around it The flow valve is also not great- not adjustable for strength and very limited on position. It also has sharp edges that have to be sanded down. The intake chamber is hard to clean because of the ridges/ledges that are in it. The middle chamber with the foam block is easier. But the foam block has very small holes for media. The foam block is also hard to clean because the side that the intake chamber is on gets tightly packed with the muck, and the foam is thick- goo doesn't release easily even with working the sponge for awhile. In conclusion, I have spent a ton of money on top of getting this tank for new lights, smaller grate intake covers, outflow 3-D mods to reduce the flow, less powerful pump, smaller bags and better filter medias, filter nest for the pump chamber, feeding hole cover, lid props, etc.

After dealing with multiple issues with BiOrb on Amazon, our School at a University decided to go a different route and try the Fluval Flex. It was not a disappointment at all. This is a very spacious and gorgeous tank that was easy to assemble and gorgeous to look at. Admittedly, I did have trouble with the remote to the fish tank light, but that's on me and not the tank (the sensor is at the top so you have to point at it which I wasn't doing). It's really fun to be able to change the colors and dim or brighten them. Very quiet and so far our fish are enjoying the added space. Incoming guests as well as the college students love coming in and watching the fish. Thank you Fluval for being wonderful (and for not being BiOrb)!

Ive had my tank almost a year now and its been great! The internal built in filter is low maintenance (rinse the medium now and then). It keeps my tank nice and clean looking and is very quiet. Ive never had any water parameter difficulties. I use black sand as a substrate and the filter has never picked up particles. Its very well made and looks/feels luxurious.I do need to take a star off because the built in lights started malfunctioning after about 6 months. It constantly flashes dark blue lights at random when lights are switched off. Ive tried every setting and unplugging, but nothing stops the lights except turning the lights on intentionally. It doesnt impact functionality at all and I have gotten use to it, but I do worry about the longevity of the LEDs with blue lights always flashing for no reason.

I bought a used tank for cheaper, which I was weary about because what if it was cracked or damaged or had a leak? I rinsed it out and put water in it and so far so good (it's on the cycling process right now), but then I realized that the pump wasn't working for me! I put it in different outlets to try and see and it still wouldn't work. I messaged the company and two days later, they responded, but they sent me a new pump for free! So they were a very nice brand to get ahold of and didn't even question it when I asked what I could do. The lighting works great. Their pump water flow was pretty strong so I did what another reviewer said and I bought those foam things to put on top of them, also from the brand fluval, which really slowed it down. I also bought the 15 gallon heater that fluval offers, which I bought used too, and it works great. Some reviewers mentioned the hole at the top, but if you have floating plants that can cover that space, I'm sure it wouldn't be an issue. Or get a piece of mesh if it's bothering you. It's really not that big and if your betta jumps through that, you might want to invest in teaching it to do some tricks because that would be impressive (I can only say that for the 15 gallon, I don't know about the 9 gallon). Anyway, I love my new tank!