Modular Planted Floor™ — Standard Library | One Fish Tank™

You tried the 3 free starter sizes. Now get the full core system.

The Modular Planted Floor™ Standard Library includes every core H30 module size we have designed — engineered to cover most standard rectangular and rimless aquariums with a clean, modular layout.

One download. Every core size. Ready to print.

What is included

✦ MPF™ Small — 70 × 70 mm
✦ MPF™ Slim — 70 × 105 mm
✦ MPF™ Medium — 70 × 140 mm
✦ MPF™ Square — 105 × 105 mm
✦ MPF™ Standard — 105 × 140 mm
✦ MPF™ Large — 140 × 140 mm
✦ MPF™ Wide — 140 × 175 mm
✦ MPF™ XWide — 140 × 210 mm
✦ MPF™ Jumbo — 210 × 210 mm

All sizes come in the standard H30 height — 1.2 inches — the same depth used in the free starter kit and the build tutorial.

What you can build

A fully modular planted aquarium floor that works like puzzle pieces.

Mix and match the modules to cover your tank floor, create planting zones, and keep control of your aquascape. Lift a module out anytime. Move plants to the front for more light. Remove a module with algae, clean it, and drop it back in.

No full teardown. No substrate disaster. Just control.

Compatible tanks

Designed for most standard freshwater tanks in the US market, including common sizes like:

✦ 10 gallon
✦ 20 gallon
✦ 40 gallon breeder
✦ 55 gallon
✦ 75 gallon
✦ UNS rimless aquariums

Bonus: Your download includes our 46-page PDF Tank Compatibility Guide, with color-coded layout sketches, module counts, and margin math to help you choose the best fit for your specific tank.

Some edge margin is normal and intentional. A small gap around the glass helps you lift modules out safely and prevents them from pressing tightly against the tank walls.

What you need to build it

✦ A 3D printer, or a friend / print service to print the files for you
✦ Aquarium filter sponge — coarse grade, 1/2 inch thick
✦ Aquarium soil — round pellet style
✦ Gorilla Max Strength Construction Adhesive or aquarium-safe silicone
✦ Aquascaping tweezers

Before you print

Watch the full build tutorial first so you know exactly what you are building and how the system goes together.

→ youtube.com/watch?v=M329Iu6Jb2o

Print settings

Material: PLA or PETG
Layer height: 0.2 mm
Wall loops: 6
Bridge direction: 45°
Supports: None required

These settings are optimized for underwater use — do not reduce them.

Want all three heights?

The Full Library will include every size at:

✦ H30 — 1.2 inches
✦ H38 — 1.5 inches
✦ H50 — 2 inches

This is for aquascapers who want more substrate volume or a deeper root zone.

Coming soon at onefishtank.com

Launch price

🚀 Launch price: $4.99
Price increases to $14.99 after the launch period ends.