
Tideline Aquarium Lids
Custom polycarbonate mesh lids for 9 Tideline models: AIO 11.3 Gallon Cube, AIO 13.4 Gallon Peninsula, AIO 20.5 Gallon Peninsula, AIO 21.4 Gallon Cube and 5 more. Each lid is CNC-cut to the model's outer glass size from 3/8″ clear, shatterproof polycarbonate, with a mesh window for optimal gas exchange and light penetration, and a lip that sits inside the glass so it cannot slide. Each one works as a screen top and jump guard: fish stay in the tank while light and air pass through. These are all-in-one tanks, so the lid covers the display area and stops at the filter chamber wall. 3 lids are longer than 33 in and are cut as two panels that butt together at a seam. Add a feeding hole with a black or white cap, cutouts for hoses and wires, a feeding cup or a removable evaporation cover in the configurator, approve a digital proof, and it ships free to the contiguous US within about a week. Guaranteed to fit.









Tideline Lid Prices & Specifications
Every lid is cut to its model's exact size from 3/8″ polycarbonate, a shatterproof plastic far tougher than glass or acrylic. Prices are for the lid alone; feeding holes, cutouts, cups and covers are added in the configurator.
| Model | Tank type | Cut as | Lid material | Price |
|---|---|---|---|---|
| Tideline AIO 11.3 Gallon Cube Lid | all-in-one | one panel | 3/8″ polycarbonate | $89.00 |
| Tideline AIO 13.4 Gallon Peninsula Lid | all-in-one, peninsula | one panel | 3/8″ polycarbonate | $107.00 |
| Tideline AIO 20.5 Gallon Peninsula Lid | all-in-one, peninsula | one panel | 3/8″ polycarbonate | $116.00 |
| Tideline AIO 21.4 Gallon Cube Lid | all-in-one | one panel | 3/8″ polycarbonate | $116.00 |
| Tideline AIO 31 Gallon Lagoon Lid | all-in-one | one panel | 3/8″ polycarbonate | $143.00 |
| Tideline AIO 47 Gallon Lagoon Lid | all-in-one | 2 panels | 3/8″ polycarbonate | $196.65 |
| Tideline AIO 49 Gallon Lagoon Lid (Older Gen) | all-in-one | 2 panels | 3/8″ polycarbonate | $215.05 |
| Tideline AIO 62 Gallon Lagoon Lid | all-in-one | 2 panels | 3/8″ polycarbonate | $242.65 |
| Tideline AIO 7.1 Gallon Cube Lid | all-in-one | one panel | 3/8″ polycarbonate | $80.00 |
Know your measurements? Build a fully custom lid with your own dimensions and cutouts.
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