The Fluval Spec V is a 5 gallon aquarium that boasts an integrated 3-stage filtration chamber. It provides a panoramic view for those who want to challenge their aquascaping talents.

| Product Name | Fluval Spec V |
| Customer Rating | ![]() |
| Gallons | 5 |
| Item Dimensions | 17.2 x 10.6 x 6.3 Inch |
It seems the LED it comes with is intended for low light plants only, which is what I would recommend planting.
If you are adventurous and want to add CO2 and fertilizers, then take a look at replacing the stock light with a Finnex Fugeray or something similar.
When I first saw this tank on sale, I knew I had to have it. The Fluval line of aquariums suit the planted tank hobbyist’s needs well. I immediately saw the potential in aquascaping this tank.
I have always preferred a long aquarium vs a cubed aquarium. When aquascaping long aquariums, it’s easier to get a nice golden ratio which is appealing to the eye. I posted some of my tank pictures below of when I first planted it.
Boyd Chemi‑Pure Blue 11 oz Aquarium Filtration Media Premium Extruded Carbon + Ion‑Exchange Resins in Nylon Bag Clears Toxins, Phosphates & Metals
$22.17 (as of December 3, 2025 07:43 GMT +02:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)UNS Ultra Clear Rimless Tank - 3.4GAL | 13L - 17.71x6.69x6.69 | 45x17x17 CM, 5mm Glass Thickness, Leveling Mat Included - Low Iron, High Clarity Fish Tank w/ 45° Mitered Edge - [45L]
$65.99 (as of November 13, 2025 01:00 GMT +02:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)Exo Terra Sub Stratum, Bioactive Volcanic Substrate for Reptile Terrariums, Eliminates Odor, Offers Correct Moisture Levels 8.8 lb
6% OffFluval Spec V Features:
- Includes foam block, activated carbon and BioMax bio rings.
- 37 LED Lighting System suitable for live plants.
- Etched-glass tank with aluminum trim.
PROS:
- Etched-glass conceals separate filtration chamber nicely.
- Longer design allows for more fish, more plants, more everything in comparison to it’s little brother the original Fluval Spec.
- Filter pump and filtration system are conveniently located in a separate chamber, staying unobtrusive to your aquascape.
CONS:
- Lighting may not be strong but suitable enough for beginners that want to keep low light, low maintenance plants.
- Due to its light design, the light doesn’t stay exactly parallel to the aquarium top which may bother the perfectionist.
- Filter pump flow can be too strong to keep betta fish.
- Lid a little on the flimsy side.







![UNS Ultra Clear Rimless Tank - 3.4GAL | 13L - 17.71x6.69x6.69 | 45x17x17 CM, 5mm Glass Thickness, Leveling Mat Included - Low Iron, High Clarity Fish Tank w/ 45° Mitered Edge - [45L] #1](https://m.media-amazon.com/images/I/411rag-0N-L._SL100_.jpg)
![UNS Ultra Clear Rimless Tank - 3.4GAL | 13L - 17.71x6.69x6.69 | 45x17x17 CM, 5mm Glass Thickness, Leveling Mat Included - Low Iron, High Clarity Fish Tank w/ 45° Mitered Edge - [45L] #2](https://m.media-amazon.com/images/I/41d23jD8FfL._SL100_.jpg)
![UNS Ultra Clear Rimless Tank - 3.4GAL | 13L - 17.71x6.69x6.69 | 45x17x17 CM, 5mm Glass Thickness, Leveling Mat Included - Low Iron, High Clarity Fish Tank w/ 45° Mitered Edge - [45L] #3](https://m.media-amazon.com/images/I/41WpCkdLITL._SL100_.jpg)
![UNS Ultra Clear Rimless Tank - 3.4GAL | 13L - 17.71x6.69x6.69 | 45x17x17 CM, 5mm Glass Thickness, Leveling Mat Included - Low Iron, High Clarity Fish Tank w/ 45° Mitered Edge - [45L] #4](https://m.media-amazon.com/images/I/41lmvv2awTL._SL100_.jpg)
![UNS Ultra Clear Rimless Tank - 3.4GAL | 13L - 17.71x6.69x6.69 | 45x17x17 CM, 5mm Glass Thickness, Leveling Mat Included - Low Iron, High Clarity Fish Tank w/ 45° Mitered Edge - [45L] #5](https://m.media-amazon.com/images/I/41XsXgcYThL._SL100_.jpg)


