Aquael OptiBent Complete Aquarium Set

Aquael OptiBent complete aquarium set overview

The Aquael OptiBent Complete Aquarium Set is a compact designer aquarium for aquarists who want a polished small display without buying the tank, light, filter and heater separately. This Shopify product covers the 20L and 30L OptiBent family in black or white, with AQ87 as the canonical 20L black SKU. The listing is written as a parent product because the live Shopify variants are 20L black, 20L white, 30L black and 30L white, not just one colour.

The appeal is visual as much as practical. Aquael uses opti type glass and rounded front corners, so the front view feels cleaner and less box-like than a standard silicone-corner cube. On a desk, shelf, kitchen counter, reception space or living-room unit, that curved-front presentation helps the aquarium look intentional rather than temporary. It is still a small aquarium, so the best results come from careful aquascaping, light stocking and regular maintenance, but the set gives you the main hardware in one coordinated package.

What is included in the box

The official Aquael OptiBent set includes the glass aquarium with cover, LEDDY Slim Duo Sunny Plant & Night lighting, a Fan Mini Plus internal filter, an Ultra Heater 25, a protective foam mat and operating instructions. Aquael describes the filter as adjustable for capacity, aeration and water-flow direction, which is useful in a compact tank where too much or too little movement is obvious. The Ultra Heater uses Aquael's Smart Heating System in a durable plastic casing, and the LEDDY Slim Duo light gives Sunny and Plant spectrums with Day, Daybreak and Night modes.

That equipment bundle is important because small tanks can quickly look cluttered when the parts do not match. The OptiBent set keeps the lamp, cover and internal equipment sized for the aquarium, so the display stays tidy while still giving the essentials needed for a heated freshwater setup. Decorations, plants, substrate and livestock shown in manufacturer images are display examples only and are not included with the set.

Size and colour comparison

Choose 20L if the space is tight and you want a very compact aquascape. Choose 30L if you can spare the extra footprint and want a more forgiving water volume, a little more room for hardscape and easier stability. Both sizes use 4mm opti glass, the same lighting family, the same Fan Mini Plus filter and the same Ultra Heater 25 on the official Aquael specification table.

Visual effect and colour choice

The black versions tend to frame plants, mosses and dark hardscape strongly, which can make a planted nano aquarium look deeper and more dramatic. The white versions feel lighter and blend well with pale rooms, white furniture and minimal interiors. The rounded front corners soften the aquarium from an angle, so the tank works well where it will be viewed from more than one side. If you are building a display for aquascaping, the 30L model gives the layout more breathing room. If you are building a neat shrimp or desktop display, the 20L version keeps the footprint compact.

The image gallery is intentionally variant-aware. It shows the official 20L black, 20L white, 30L black and 30L white Aquael images, rather than forcing one picture to represent every choice. That protects buyer confidence and avoids the common problem where a customer selects a white or larger tank but only sees a black 20L photo.

Best fit for buyers

• Aquarists who want a complete compact aquarium set instead of a bare tank.
• Planted nano aquascapes where clean glass, tidy lighting and modern proportions matter.
• Shrimp displays or very carefully stocked nano fish setups after the aquarium is fully cycled.
• Home offices, desks, shelves, reception areas and small room features where the tank is part of the interior.
• Customers comparing 20L and 30L cube-style tanks before choosing a size and colour.

Setup and stocking notes

The OptiBent is small, so it rewards restraint. Build the layout first, cycle the aquarium fully, then stock lightly based on adult size, behaviour and water requirements. A 19L or 29L actual water volume can change quickly if overfed or overcrowded, so regular small water changes, sensible feeding and reliable testing matter. The included filter and heater give a strong starting point, but they do not remove the need to plan livestock carefully.

For aquascaping, leave access around the cover and light, keep cables tidy and place the tank on a stable, level surface that can handle the filled weight. The supplied foam mat is part of the set and should be used as intended. If you choose a shrimp display, protect young shrimp from strong intake flow with suitable maintenance and accessories where needed. If you choose fish, avoid species that need long swimming space or large groups that would overload a nano aquarium.

Maintenance and day-to-day use

Compact aquariums look best when the routine is simple. Keep the front glass clear, trim plants before they block the small viewing area, rinse filter media only in old aquarium water, and avoid large sudden changes that shock livestock. The LEDDY Slim Duo Day, Daybreak and Night modes are useful for viewing the tank at different times, but the photoperiod should still be controlled sensibly to reduce algae. Because the cover and lamp sit neatly on top, leave enough clearance above the aquarium to feed, clean and remove equipment without scraping the wall or shelf above it.

Water quality is the limit in a small set. A 30L aquarium gives more room for error than 20L, but neither should be pushed like a large community aquarium. Treat the OptiBent as a display piece with living contents, not as a storage box for extra fish. A careful stocking plan, patient cycling and steady maintenance will do far more for the final result than trying to add more animals.

Compare before buying

Compared with a bare glass tank, the OptiBent is easier to buy as a single set because the key equipment is already matched. Compared with a larger aquarium, it is easier to place but less forgiving of mistakes. Compared with very cheap beginner kits, the opti glass and rounded front corners give a more premium appearance. The best choice depends on your room, the final aquascape and how carefully you want to stock it.

If the aquarium will sit against dark furniture or you want strong contrast around plants, the black set is usually the more striking choice. If the aquarium will sit in a bright, minimal room, the white set can look cleaner. If you are undecided between the two volumes, choose 30L when space allows; the extra water volume and footprint make layout and maintenance a little easier. Choose 20L when the small footprint is the reason you are buying the set.

Important exclusions

This listing is for the Aquael aquarium set and included equipment only. Substrate, rocks, wood, plants, livestock, fertiliser, water conditioner, test kits and food are separate purchases. Manufacturer lifestyle images may show a finished aquarium so buyers can judge the look, but the box contents are the set components listed above. Check the selected Shopify variant before checkout so the size and colour match your space.