White deep substrate intake cover standing in deep white gravel at the back of a tank

Deep Substrate Intake Cover for Fluval Flex 9 & 15 Gallon

Black
$6.00
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White deep substrate intake cover standing in deep white gravel at the back of a tank

Deep Substrate Intake Cover for Fluval Flex 9 & 15 Gallon

Reviews from our Etsy shop

$6.00

Fits: Fluval Flex 9 & 15 Gallon (Original)

Not for: Fluval Flex 9 & 15 Gallon 2.0 · Fluval Flex 32.5 Gallon

Not sure which tank you have?
  • Room for 3 in of substrate, 1 in more than stock.
  • Fine mesh keeps shrimp and fry out of the filter chamber.
  • No drilling and no changes to the tank.
Color
  • Flat $4.88 shipping for your whole US order
  • Ships Mon, Wed & Fri. Arrives 2–5 business days after it ships.
  • Damaged or wrong? Refund or a new part within 30 days. Our policy

About this part

A deep substrate is great for plants, but on the Flex it can creep up and block the lower intake. This intake cover raises the opening, so you can build the substrate a full 3 in deep, 1 in more than stock, and water still reaches the filter. Its fine mesh keeps shrimp and tiny shrimp fry in the tank.

Compatibility
  • Fits: the lower intake of the original Fluval Flex 9 gallon (34 L) and 15 gallon (57 L).
  • Does not fit: the Fluval Flex 2.0 or the Flex 32.5.
Why it helps
  • Room for 3 in of substrate, 1 in more than stock.
  • Fine mesh keeps shrimp and fry out of the filter chamber.
  • No drilling and no changes to the tank.
Installation
  1. Snap the cover onto the stock lower intake.
  2. Build your substrate up to the bottom of the cover.
In the box

One deep substrate intake cover, in black or white.

Designed and 3D printed in Pennsylvania. One flat shipping price covers your whole US order, so a second part ships for no extra cost.

  • 5 stars: 44 (90%)
  • 4 stars: 4 (8%)
  • 3 stars: 0 (0%)
  • 2 stars: 1 (2%)
  • 1 star: 0 (0%)
M
Mike

Don't have to worry if substrate covers it now, and will be safe for the new shrimpies!

E
Etsy customer

The items fit perfectly and they keep my shrimp very happy!!!

N
Nayeli Manzo

Fit perfectly, color blended in with the tank very well. Easy to clean and it's just what I wanted! Perfect for my Fluval flex 15.

M
Matthew Simonds

Item was just as described!

R
Rena

Fast shipping, as described. Perfect fit.

J
Joyce

Perfect fit and makes my Fluval much more shrimp friendly!

A
Aileen Abutin

I purchased this intake cover for my Fluval Flex 15-gallon tank, and it fits perfectly! Unfortunately, one of the mounting tabs broke during maintenance. I contacted the seller, and he responded quickly, acknowledged the issue, and immediately arranged to send me a replacement with tracking information. No hassle whatsoever! It's refreshing to find a seller who genuinely stands behind their products and cares about their customers. Highly recommend!

H
Holly Gardner

Great item, fit my tanks lower intake very well. Love the smaller flow holes flow holes so debris won’t get into my filter chambers

M
Michael

Yet again another stellar product. Going to use this in a new pee puffer that will be heavily planted. Thanks again!

E
Etsy customer

Everything came as described, and everything is super helpful for my fluval!

A
Allan Shultz

Awesome custom parts that fit perfectly.

S
Sarah Sharpe

All great products - troubleshooting and solving the weirdly specific problems (this) novie person had setting up her first, planted Betta aquarium!

C
Carolyn Macomber

Great products perfect for what my tank needed.

M
Michael Moore

I have shared all the things that I have purchased from you with The Wet Spot here in Portland Oregon. They were most impressed as I have always been.
Once again a quality product. Thank you for the careful packaging and prompt shipment

E
Etsy customer

fast shipping and nice item

T
Tracey Donathen

Works great for deeper substrate! Fast shipping. Thanks

E
Etsy customer

good product would buy again

T
Tony

Very good product that was just what I needed.

M
Mark

Would purchase from this seller again.

O
Omar Kablawi

Works as described, no issues

N
Nick Maxfield

Nice intake cover. Was able to slope the substrate up higher in the back to allow for better planting of stem plants.

K
Kelly Siegal

Fits perfectly! Thank you so much!

R
Richard Figueroa

Quality is great. I liked this one over the alternative on Etsy , it suits our needs. No more worrying about small fish getting sucked in

T
Tanya

Great purchase again!! Thank you again!

J
Jenn

Very clean. Absolutely beautiful and well made

T
Trevor Money

Thought this would be an upgrade from the OEM unit, but in fact it didn't help, but made things worse. The water flow was restricted so much that the levels in the rea compartments, 1 of which includes my aquarium heater, drop to less than half and the outflow was almost negligible.
Once I removed it, the levels in the back rose to where they were supposed to be, and the outflow was restored to normal. Shame because it seemed like a good idea in theory.

R
Raymond

Shipped fast, great quality, no issues with what I needed it for!

N
Nicole Chew

Well crafted, as described. Works fantastic!

V
Valerie Swiger

Exactly what I needed. Works wonderfully to keep the littles and plants INSIDE the tank and out of the filter. Well made. Durable. Great discreet look.

E
Etsy customer

Great seller and great product

g
griffin eudy

Great quality, but restricted flow too much for my setup.