Small Aquarium Undergravel Filter System (suitable for aquariums within 45cm length)

Undergravel filter design schematic:

You can adjust the size using the slicing software's scaling function to fit other small aquariums less than 45cm in length.

My aquarium size is 30*17*20cm, if your aquarium is this size, you can print directly without adjusting the size.

The slotted version is suitable for the following waterfall filters:

I purchased the cheapest version from a certain Taobao YaFeng Pet Supplies flagship store. If you need slots of other sizes, you can download the unslotted version and drag a few circles in the slicing software to cut them yourself.

The undergravel filter uses a spliced design, and can be assembled without glue after printing.

Since the length of the inlet pipe of the purchased waterfall filter was not compatible with the aquarium, I designed a filter extension tube. For aquariums of other heights, you can use the scaling function of the slicing software to adjust the size of the extension tube. The extension tube is equipped with a baffle to prevent filter media from falling into the bottom through the slots when the filter is removed.

The complete assembly is as shown in the picture above.

Appendix Aquarium Cover Model Link:https://makerworld.com.cn/zh/models/1999893