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  • May include: A clear plastic tube with green end caps. One end cap has a honeycomb pattern.
  • Python Water Change Fish Guard & Diffuser: Aquarium Safe image 2
  • May include: A clear glass jar with a green plastic lid. The lid has a textured surface.
  • Python Water Change Fish Guard & Diffuser: Aquarium Safe image 4
  • May include: Three plastic containers with a honeycomb pattern on the bottom. The containers are blue, green, and light green.
  • May include: Three round plastic containers in different colors: light blue, teal, and green. The containers are all the same size and shape.
  • May include: A black, cylindrical, 3D printed coaster.
  • May include: Black round plastic filter with a honeycomb pattern.
  • May include: A clear plastic tube with green end caps. One end cap has a honeycomb pattern.
  • Python Water Change Fish Guard & Diffuser: Aquarium Safe image 2
  • May include: A clear glass jar with a green plastic lid. The lid has a textured surface.
  • Python Water Change Fish Guard & Diffuser: Aquarium Safe image 4
  • May include: Three plastic containers with a honeycomb pattern on the bottom. The containers are blue, green, and light green.
  • May include: Three round plastic containers in different colors: light blue, teal, and green. The containers are all the same size and shape.
  • May include: A black, cylindrical, 3D printed coaster.
  • May include: Black round plastic filter with a honeycomb pattern.
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Python Water Change Fish Guard & Diffuser: Aquarium Safe

Oh My Puff

Made by Oh My Puff

Owner of OhMyPuff

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What to know

Materials

Aquarium Safe PETG

Made to Order

Yes

Protect your fish and diffuse your water flow with our custom-designed Fish Guard & Water Diffuser, made to fit the popular 5cm (2") and 2.5cm (1") Python Water Change System. This guard is perfect for keeping fish, shrimp, and other aquarium inhabitants safe during water changes, while also helping to diffuse strong water flow to minimize substrate disturbance.

Features:
🐠 Perfect Fit: Designed specifically for the 5cm / 2" Python water change system.
💧 Safe & Functional: Prevents fish and debris from being accidentally sucked up.
⚙️ Optimized Flow: Diffuses water flow to reduce stress on fish and prevent stirring up your substrate.
🔍 Precision Holes: 3.5mm / 0.15" openings allow strong water flow while keeping your fish safe.
🖤 Durable & Aquarium-Safe: Made from high-quality PETG

A must-have accessory for any aquarist using a Python system — protect your tank while making maintenance easier and safer.

Do not forget to check out our Python Hook Water Diffuser!

*Translucent Green is limited edition while supplies last.
** It is made to fit tightly, twisting the guard while installing and removing can help.

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What buyers say

Summarized by AI from all item reviews

5.0 (19)
Fits well Fast shipping
View all item reviews

Price:$9.99+

Shipping & return policies

  • Get it by
    Jul 28-31
  • Returns & exchanges
    Accepted within 30 days
  • Ships from
    Columbus, OH
    Shorter shipping distances are kinder to the planet
  • Cost to Ship
    FREE to United States, 43215

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This seller consistently earned 5-star reviews, shipped on time, and replied quickly to any messages they received.

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Reviews for this item

5.0

We calculate this number using a recency-weighted average of all ratings, with a rating's value decreasing by half each year to best reflect the current experience.

(19 reviews)

5.0 Item quality
5.0 Shipping
5.0 Customer service
100% Buyers recommend

What buyers say

Summarized by AI from all item reviews

Fits well Fast shipping

Filter by category
5 out of 5 stars 5

Chris Jul 23, 2026

Well made product, works perfectly!

Chris Jul 23, 2026

5 out of 5 stars 5

Denise Jun 21, 2026

perfect fit

Denise Jun 21, 2026

5 out of 5 stars 5

Etsy buyer Jun 9, 2026

Great quality and fast shipping! Thank you!

Etsy buyer Jun 9, 2026

5 out of 5 stars 5

Jack May 19, 2026

Python cap fits snugly and is perfect for not vacuuming up my rasboras or cherry shrimp.

Jack May 19, 2026

Photos from reviews

Meet your seller

OhMyPuff
Oh My Puff
OhMyPuff ·

Columbus, Ohio

We calculate this number using a recency-weighted average of all ratings, with a rating's value decreasing by half each year to best reflect the current experience. 5.0
·
693 sales
·
1.5 years on Etsy

Usually responds in a few hours

Smooth shipping Has a history of shipping on time with tracking.

Speedy replies Has a history of replying to messages quickly.

Rave reviews Average review rating is 4.8 or higher.

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