
Ultum Nature Systems Lids & Covers
Custom polycarbonate mesh lids for 31 Ultum Nature Systems models: 120P Standard 78 Gallon, 120S Shallow 68 Gallon, 120U Standard 114 Gallon, 150U Standard 142.5 Gallon and 27 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. 7 of these are all-in-one tanks, so the lid covers the display area and stops at the filter chamber wall. 8 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.
Ultum Nature Systems names its rimless tanks by centimeter length and shape — 3N and 5N Nano, 25C / 30C / 50C Cube, 25S through 120S Shallow, 3T / 5T / 25T Tall, 45L / 90L / 90B Long, 45U / 60U / 120U / 150U Standard, and the 90P / 120P pro-depth tanks — plus the 30A, 35A, 40A, 45A, 60A and 90LA dual-filter all-in-ones with a black or white filter wall. We have a template for each one in the list below, so you choose by model instead of measuring.
UNS glass is thin, low-iron and rimless with mitered or polished edges, which is exactly what a mesh lid is for: it sits inside the glass on a lip, adds no frame to the look, and stops jumpers while letting the full light spread from a slim fixture reach the scape. On the dual AIO tanks the lid covers the display and stops at the filter wall. The 90L, 90B, 90P, 120-series and 150U are cut as two or three panels.
Nano UNS tanks (3N, 5N, 25C, 25S, 25T, 3T, 5T, 30C, 45L) start at our minimum lid price and are eligible for Nano November pricing while the sale runs.































Ultum Nature Systems 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 |
|---|---|---|---|---|
| Ultum Nature Systems 120P Standard 78 Gallon | rimless | 2 panels | 3/8″ polycarbonate | $304.75 |
| Ultum Nature Systems 120S Shallow 68 Gallon | rimless | 3 panels | 3/8″ polycarbonate | $349.70 |
| Ultum Nature Systems 120U Standard 114 Gallon | rimless | 3 panels | 3/8″ polycarbonate | $349.70 |
| Ultum Nature Systems 150U Standard 142.5 Gallon | rimless | 3 panels | 3/8″ polycarbonate | $422.50 |
| Ultum Nature Systems 25C Cube 4 Gallon | rimless | one panel | 3/8″ polycarbonate | $76.00 |
| Ultum Nature Systems 25S Shallow 2 Gallon | rimless | one panel | 3/8″ polycarbonate | $76.00 |
| Ultum Nature Systems 25T Tall 5.5 Gallon | rimless | one panel | 3/8″ polycarbonate | $76.00 |
| Ultum Nature Systems 30A 7 Gallon Dual AIO Black Filter Wall | all-in-one | one panel | 3/8″ polycarbonate | $76.00 |
| Ultum Nature Systems 30A 7 Gallon Dual AIO White Filter Wall | all-in-one | one panel | 3/8″ polycarbonate | $76.00 |
| Ultum Nature Systems 30C Cube 7 Gallon | rimless | one panel | 3/8″ polycarbonate | $76.00 |
| Ultum Nature Systems 35A 11 Gallon Dual AIO Black Filter Wall | all-in-one | one panel | 3/8″ polycarbonate | $81.60 |
| Ultum Nature Systems 3N Nano 3 Gallon | rimless | one panel | 3/8″ polycarbonate | $76.00 |
| Ultum Nature Systems 3T Tall 3.4 Gallon | rimless | one panel | 3/8″ polycarbonate | $76.00 |
| Ultum Nature Systems 40A 16 Gallon Dual AIO Black Filter Wall | all-in-one | one panel | 3/8″ polycarbonate | $121.60 |
| Ultum Nature Systems 45A 9 Gallon AIO Peninsula Black Filter Wall | all-in-one, peninsula | one panel | 3/8″ polycarbonate | $81.60 |
| Ultum Nature Systems 45L Long 3.8 Gallon | rimless | one panel | 3/8″ polycarbonate | $76.00 |
| Ultum Nature Systems 45U Standard 9 Gallon | rimless | one panel | 3/8″ polycarbonate | $89.60 |
| Ultum Nature Systems 50C Cube 30.9 Gallon | rimless | one panel | 3/8″ polycarbonate | $144.00 |
| Ultum Nature Systems 50C Cube 33 Gallon | rimless | one panel | 3/8″ polycarbonate | $144.00 |
| Ultum Nature Systems 5N Nano 4 Gallon | rimless | one panel | 3/8″ polycarbonate | $76.00 |
| Ultum Nature Systems 5S Shallow 2 Gallon | rimless | one panel | 3/8″ polycarbonate | $76.00 |
| Ultum Nature Systems 5T Tall 5.4 Gallon | rimless | one panel | 3/8″ polycarbonate | $76.00 |
| Ultum Nature Systems 60A 20 Gallon Dual AIO Black Filter Wall | all-in-one | one panel | 3/8″ polycarbonate | $121.60 |
| Ultum Nature Systems 60S Shallow 10 Gallon | rimless | one panel | 3/8″ polycarbonate | $114.40 |
| Ultum Nature Systems 60U Standard 20 Gallon | rimless | one panel | 3/8″ polycarbonate | $127.00 |
| Ultum Nature Systems 75S Shallow 26 Gallon | rimless | one panel | 3/8″ polycarbonate | $161.00 |
| Ultum Nature Systems 90B Long 12 Gallon | rimless | 2 panels | 3/8″ polycarbonate | $165.60 |
| Ultum Nature Systems 90L Long 21 Gallon | rimless | 2 panels | 3/8″ polycarbonate | $185.15 |
| Ultum Nature Systems 90LA 21 Gallon Dual AIO Black Filter Wall | all-in-one | one panel | 3/8″ polycarbonate | $144.00 |
| Ultum Nature Systems 90P Standard 44 Gallon | rimless | 2 panels | 3/8″ polycarbonate | $243.80 |
| Ultum Nature Systems R90 | rimless | 2 panels | 3/8″ polycarbonate | $327.75 |
Ultum Nature Systems Lid Questions
- What does the letter in a UNS model number mean?
- N is Nano, C is Cube, S is Shallow, T is Tall, L is Long, U is Standard and P is the deeper pro series. A is the dual all-in-one range with a built-in filter wall. The number is the tank length in centimeters, so a 60U is a 60 cm standard tank.
- Do you have a lid for the UNS 60U?
- Yes — the 60U Standard 20 gallon is a single-panel lid. The 60S Shallow and 60A dual AIO are separate templates because their footprints differ.
- Will a mesh lid cut light from my UNS tank's slim LED?
- The mesh window is sized to the inside of the glass and passes the bulk of the light; the polycarbonate frame is clear. Planted and reef tanks under a Twinstar, Chihiros, AI Prime or Kessil keep their spread. If you want no mesh over a specific area, add a cutout in the configurator.
- Does the lid fit the black-wall and white-wall dual AIO tanks the same way?
- Yes. The black and white filter-wall versions share dimensions; they are listed separately so the product photo and proof match your tank.
- Can you make a lid for a UNS tank that is not listed?
- Yes. Use the custom builder with the outside glass length and width, or send a lid request with the model name and we will add it.
Before You Order a Ultum Nature Systems Lid
Short guides on what a lid is made of, which fish jump, and how to measure anything that crosses the glass.
Know your measurements? Build a fully custom lid with your own dimensions and cutouts.
Build Custom Lid →Not comfortable measuring on your own? Send us a New Tank / Lid Request and we'll get back to you ASAP.
Request a Lid →






























