The best match for an acrylic aquarium in this group is the 4-gallon biOrb Halo 15, which is explicitly made from acrylic and suits compact tabletop displays. For buyers who prioritize a 5-gallon capacity and included equipment, the Koller and Aqueon kits are alternatives, but their supplied details do not identify the tank material. The glass option and 6.5-gallon kit are useful comparisons, not exact matches for both acrylic and five gallons.
| Product | Capacity and material in supplied details | Best suited for |
|---|---|---|
| biOrb Halo 15 | 4 gallons; acrylic | Compact acrylic display |
| Koller Aquarium Kit | 5 gallons; material not specified | LED modes and included filtration |
| Aqueon MiniBow | 5 gallons; material not specified | Starter kit and water-change feature |
| Wonderfactory Aquarium | 6 gallons; low-iron glass | Clear, rimless glass display |
| Koller AP650 | 6.5 gallons; impact-resistant plastic | More capacity with LED and filter |
biOrb Halo 15 Acrylic Aquarium

Best for: Buyers who specifically want an acrylic aquarium for a desk or tabletop. This model is four gallons rather than five, but it is the clearest material match in the list: the product details identify its construction as acrylic.
The compact tank has a 360-degree view and a hidden waterline designed to create a floating-display effect. Its listed filtration system has five stages: biological, mechanical, chemical, water stabilization, and oxygenation. Ceramic media around the filter supports beneficial bacteria, according to the product information.
Limitation: Choose another option if exactly five gallons is essential. The product description also identifies a specialized filtration system, so check replacement-media requirements before buying.
Koller Products 5-Gallon Aquarium Kit

Best for: Buyers seeking a five-gallon kit with lighting and an internal power filter. Its LED offers white, warm, blue, and mixed white-blue modes, plus a 2-, 4-, or 8-hour timer and a memory function. The listed filter runs at 45 gallons per hour and uses Koller Products S replacement cartridges.
This kit was selected because its stated capacity matches the search and it includes core equipment for a small aquarium setup. Multiple lighting modes also make it more flexible for display preferences.
Limitation: The supplied details do not specify whether the aquarium vessel is acrylic. Buyers who require acrylic should confirm the material before purchase.
Aqueon LED MiniBow 5-Gallon Kit

Best for: New aquarium owners who want a five-gallon starter package. The kit includes the aquarium vessel, hood, elevated base, power filter, small filter cartridge, fish food, water conditioner, and setup guide. Its SmartClean feature is described as enabling water changes in less than two minutes.
Choose this if a bundled setup and a stated maintenance feature matter more than a specific acrylic construction. The included filter is intended to improve water quality, while the hood and base provide a ready-made display arrangement.
Limitation: The product details provided do not identify the vessel material. Confirm it with the seller if acrylic is a requirement.
Wonderfactory 6-Gallon Glass Aquarium

Best for: Buyers who value a clear, rimless glass display and can accept a capacity above five gallons. This model is described as six gallons, with 5 mm low-iron glass, precision bonding, and pre-installed soft base pads. The pads are intended to protect furniture and absorb vibration.
It is included as a material-based comparison, not as an acrylic pick. The low-iron glass is described as providing clear views with true-to-life color, making this option relevant when visual clarity is a priority.
Limitation: It is glass, not acrylic, and its listed capacity is six gallons. Avoid it if either acrylic construction or an exact five-gallon size is non-negotiable.
Koller Products 6.5-Gallon Aquarium Kit

Best for: Buyers willing to go larger than five gallons who want a kit with a filter and multicolor lighting. The tank is described as impact-resistant plastic with crystal-clear clarity. Its LED offers daylight white, warm white, blue, and blue-white choices. The internal filter has a listed flow rate of 45 gallons per hour and uses Koller Products Small cartridges.
Choose this over the five-gallon Koller kit if the extra capacity is useful and the specified plastic construction is acceptable. It provides a close comparison for buyers considering a non-glass tank.
Limitation: It is 6.5 gallons, not five, and the product description says plastic rather than acrylic. Confirm the material distinction if you specifically need acrylic.
Buying Guide: How to Choose a Small Aquarium
Does the tank need to be exactly five gallons?
Check the stated capacity before comparing features. The biOrb is four gallons, the Wonderfactory is six gallons, and the larger Koller kit is 6.5 gallons. Only the Koller and Aqueon options are listed as five gallons.
How important is acrylic construction?
In this selection, the biOrb is explicitly identified as acrylic. The 6.5-gallon Koller is described as impact-resistant plastic, while the Wonderfactory is glass. The material for the two five-gallon kits is not stated in the supplied details, so verify it rather than assuming.
What equipment should buyers compare?
Compare the included filtration, lighting, and maintenance accessories. The Koller kits list internal power filters and LED options; the Aqueon includes a filter and starter supplies; the biOrb emphasizes its five-stage system. Check cartridge or media availability and follow the aquarium maker’s setup instructions.
Where will the aquarium sit?
Measure the available surface and consider the complete setup, including the base and any equipment. The biOrb is specifically positioned for desktop or tabletop display. Use a stable surface appropriate for the filled aquarium, and follow the manufacturer’s placement guidance.
Frequently Asked Questions
Which product listed is explicitly acrylic?
The biOrb Halo 15 is explicitly described as acrylic. It has a four-gallon capacity, not five gallons.
Which options are listed as five gallons?
The Koller Products Aquarium Kit and Aqueon LED MiniBow are both listed as five-gallon aquariums. Their supplied descriptions do not specify the vessel material.
Is the Wonderfactory aquarium acrylic?
No. Its product details describe a low-iron glass aquarium.
What does the Aqueon SmartClean feature do?
The product description says SmartClean technology can perform water changes in less than two minutes.
Is the 6.5-gallon Koller kit a five-gallon aquarium?
No. Its listed capacity is 6.5 gallons, and its construction is described as impact-resistant plastic.