1. Introduction and Overview
Thank you for choosing the Fishkeeper FK119 2.3 Gallon Smart Aquarium. This all-in-one desktop aquarium is designed for ease of use and features a built-in light, pump, and filter system. It includes an 8-color RGB LED lighting system with an auto-timer, a 4-in-1 self-cleaning water pump, aromatherapy functionality, and a touch-control LED display for temperature monitoring.

Figure 1: The Fishkeeper FK119 2.3 Gallon Smart Aquarium, fully set up with fish and decorative elements.
2. What's Included
Your Fishkeeper FK119 Smart Aquarium package includes the following components:
- 1x 2.3 Gallon Fish Tank (Ultra-Clear Glass)
- 1x Water Pump (4-in-1 functionality)
- 1x Replacement Filter Sponge
- 2x 5V Power Adapters
- 3x Artificial Grass Decorations

Figure 2: Overview of the Fishkeeper FK119 Smart Aquarium's dimensions and integrated features.
3. Setup Instructions
- Unpack Components: Carefully remove all items from the packaging. Inspect for any damage.
- Rinse Tank and Decorations: Rinse the glass tank, artificial grass, and any other decorations thoroughly with clean water. Do not use soap or detergents.
- Install Water Pump and Filter: The water pump and filter sponge are pre-installed. Ensure they are securely in place within the designated compartment under the lid.
- Add Substrate (Optional): If using gravel or sand (not included), add a thin layer to the bottom of the tank.
- Place Decorations: Arrange the artificial grass and any other decorations as desired.
- Fill with Water: Slowly fill the tank with dechlorinated water up to the recommended water line.
- Connect Power: Plug the 5V power adapters into the appropriate ports on the aquarium lid and then into a power outlet.
Video 1: A demonstration of the Fishkeeper Smart Aquarium with auto timer and 8-color RGB lights, showcasing its features and setup.
4. Operating Instructions
4.1. Touch-Control LED Display
The aquarium features a touch-control LED display on the lid. This display shows the real-time water temperature (in °C/°F) and allows control over the lights and humidifier.

Figure 3: The touch-control LED display on the aquarium lid, indicating temperature and controls for lighting and humidifier. Also shows the feeding hatch and aromatherapy tray.
4.2. 8-Color RGB LED Lighting
The aquarium is equipped with premium 5050 RGB LEDs offering 8 vivid colors and 0-100% dimming. Press the 'Lamp' button on the touch display to cycle through colors or activate the auto-cycle mode.

Figure 4: The aquarium displaying different 8-color RGB LED lighting options, highlighting the customizable ambiance.
Video 2: Instructions on how to customize the 8-color RGB lights of the Fishkeeper Smart Aquarium.
4.3. Smart Lighting Timer
Set customizable lighting schedules (1-23 hours) for automatic day/night cycles. This feature helps maintain fish health and eliminates manual operation. Long press the 'Lamp' button to enter timer setting mode.

Figure 5: The smart lighting timer feature, illustrating automatic day and night cycles for the aquarium lights.
4.4. Humidifier & Aromatherapy
The aquarium includes a dual-function smart mist diffuser with a dedicated tray for water or essential oils. This tray is separate from the tank water. Press the 'Humidifier' button to activate and cycle through three mist modes: gentle interval, fast mist, and continuous flow.
Video 3: A guide on how to set up and use the humidifier and aromatherapy features of the Fishkeeper Smart Aquarium.
4.5. 4-in-1 Self-Cleaning Water Pump
The integrated water pump provides self-filtration, oxygenation, rainfall effect, and ultra-quiet circulation (<30dB). This system helps maintain a clean and healthy aquatic environment.

Figure 6: Visual representation of the 4-in-1 self-cleaning circulation ecosystem, detailing filtration, oxygenation, and rainfall features.
5. Maintenance
5.1. Water Pump and Filter Cleaning
Regular cleaning of the water pump and filter sponge is crucial for optimal performance and water quality. It is recommended to clean these components monthly.
- Disconnect Power: Always unplug the aquarium from the power outlet before performing any maintenance.
- Remove Lid: Carefully lift the aquarium lid to access the pump and filter compartment.
- Disassemble Pump: Gently remove the water pump and disassemble its parts (e.g., intake tube, impeller cover).
- Clean Components: Rinse all pump parts and the filter sponge thoroughly with clean, dechlorinated water. Remove any debris or algae buildup. Do not use tap water directly as it may contain chlorine harmful to beneficial bacteria.
- Reassemble: Reassemble the pump and place it back into the compartment with a clean filter sponge.
- Replace Lid and Restore Power: Securely replace the lid and plug the aquarium back into the power outlet.
Video 4: Detailed instructions on how to clean and maintain the water pump of the Fishkeeper Smart Aquarium.
5.2. Water Changes
Perform partial water changes (25-50% of the tank volume) weekly or bi-weekly to maintain water quality. Use a gravel vacuum to remove debris from the substrate during water changes. Always use dechlorinated water when refilling the tank.
6. Troubleshooting
- No Power: Ensure both 5V power adapters are securely plugged into the aquarium and a working power outlet. Check for any tripped circuit breakers.
- Pump Not Working: Disconnect power, remove the pump, and check for any obstructions in the impeller. Clean thoroughly as per maintenance instructions.
- Lights Not Working: Check power connections. If using the timer, ensure it is set correctly.
- Humidifier Not Producing Mist: Ensure the humidifier tray has sufficient distilled water. Check for any blockages in the mist outlet.
- Cloudy Water: Perform a partial water change. Check and clean the filter sponge. Ensure the tank is not overstocked or overfed.
7. Specifications
| Feature | Detail |
|---|---|
| Model Name | FK119 |
| Tank Volume | 2.3 Gallons (9 Liters) |
| Dimensions (LxWxH) | 12 x 5.7 x 10 inches (30.5 x 14.7 x 25 cm) |
| Item Weight | 5.1 Pounds (2.3 kg) |
| Material | Ultra-Clear Glass (4mm thick) |
| Lighting | 8-Color RGB LED with 0-100% dimming |
| Lighting Timer | 1-23 hours customizable schedule |
| Water Pump | 4-in-1 (Filtration, Oxygenation, Rainfall, Circulation) <30dB |
| Humidifier | Smart mist diffuser with separate aromatherapy tray |
| Display | Touch-Control LED (Temperature °C/°F) |
8. Warranty and Support
The Fishkeeper FK119 Smart Aquarium comes with a 2-Year Warranty from the date of purchase. This warranty covers manufacturing defects and malfunctions under normal use. Please retain your proof of purchase for warranty claims.
For technical support, troubleshooting assistance, or warranty inquiries, please contact Fishkeeper Customer Service through the retailer where you purchased the product or visit the official Fishkeeper website.
