Does this tank truly hold 15 gallons of usable water for fish?

Absolutely not. The person who answered saying yes is wrong. I measured after decorating my tank and it only holds 12 gallons. Plus you have to consider the back panel is missing so there is less swim space. This really is more of a 10 gallon tank.

Does 15” depth represent the dist. from the back to the front of the bottom of the tank or from back to the most forward part of the curved face?

It's 15" tall (floor to ceiling) by 15 inches deep (front to back) by 16" wide (left to right). Hope that helps.

What all will it come with. (heater pump. filter. media. etc?

This aquarium comes with an LED light built into the hood, pump, and filter with media.

can someone give me the dimensions of the filter compartment?

It is 4.25" x 3" (this is just the portion that houses the filtration system)

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Fluval Flex 57 - 15 Gallon Nano Glass Aquarium Kit

Product ID: 37898159

Details

Brand
Fluval
Color
Black
Item Weight
12.72 kg
Material
Glass
Product Dimensions
16"L x 15"W x
Shape
Rectangular

🌀3-stage oversized filtration system

💡7500K White + RGB customizable LEDs

📐Curved front with honeycomb wrap design

Description

🐠 Elevate your aquatic vibe with style and tech that makes your fish the envy of every desk and den!

SLEEK MODERN AESTHETIC - Curved glass front and honeycomb wrap conceal equipment for a minimalist, gallery-worthy display.
SUPERIOR WATER CLARITY - Advanced 3-stage filtration ensures pristine, healthy aquatic environment effortlessly.
VIBRANT CUSTOM LIGHTING - Fully adjustable LED spectrum with FLEXPad remote for dynamic ambiance and optimal plant growth.
WHISPER QUIET OPERATION - Powerful yet silent pump and filtration system keep your space peaceful and stress-free.
USER FRIENDLY MAINTENANCE - Easy-feed top cover and multi-directional water flow let you customize and care with zero hassle.

The Fluval Flex 57 is a 15-gallon nano glass aquarium kit combining cutting-edge 7500K White + RGB LED lighting with a remote-controlled FLEXPad for endless color customization and plant support. Its innovative 3-stage filtration system with oversized mechanical, chemical, and biological media guarantees superior water quality. Designed with a sleek curved front and honeycomb wrap, it conceals equipment for a clean, modern look. Lightweight and whisper-quiet, this aquarium offers multi-directional water flow and easy maintenance features, making it perfect for stylish, health-conscious fish keepers seeking a premium, hassle-free aquatic experience.

Specifications

ASIN	B01N53XPQ8
ASIN	B01N53XPQ8
Additional Features	Lightweight
Best Sellers Rank	#92,194 in Pet Supplies ( See Top 100 in Pet Supplies ) #388 in Aquarium Lights
Brand Name	Fluval
Color	Black
Customer Reviews	4.5 4.5 out of 5 stars (3,693)
Date First Available	December 12, 2016
Global Trade Identification Number	00015561150064
Included Components	Hagen Flex Freshwater Kit - Black - 15 gal
Item Dimensions L x W x H	16"L x 15"W x 15"H
Item Shape	Rectangular
Item Type Name	Hagen Flex Freshwater Kit - Black - 15 gal
Item Weight	12.72 kg
Item model number	15006
Manufacturer	Rolf C. Hagen (USA) Corp.
Manufacturer	Rolf C. Hagen (USA) Corp.
Manufacturer Part Number	15006
Manufacturer recommended age	1 month and up
Material Type	Glass
Model Number	15006
Number of Items	1
Pet Type	Fish
Product Dimensions	16.14 x 15.35 x 15.35 inches; 28.04 pounds
Product Style	Modern
Set Name	Fluval Flex 57 - 15 Gallon Nano Glass Aquarium Kit
Specific Uses For Product	Indoor
Tank Volume	15 gallons
Target Species	Fish
UPC	015561150064
Vivarium Type	Aquarium
Warranty Description	Manufacturer Warranty

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