Welcome to the support page for your Smart Fish Tank WP8689. Here you will find everything you need to set up, use, and maintain your aquarium for a smooth and enjoyable experience.
📦 What’s in the Box
- 1 × Fish Tank Body (Glass)
- 1 × Smart Lid (with Integrated Feeder, RGB Light, Water Pump, Filter Sponge/Media, and Connection Tube)
- 1 × 5V/2A Power Adapter
- 1 × User Manual
- Note: Oxygen Pump sold separately.
⚡ Quick Start Guide
1. Hardware Setup
- Place the water pump at the bottom of the tank.
→ Tip: If using fine sand, mount the pump slightly higher on the glass wall to avoid clogging. - Fill the tank with water—ensure the water level fully covers both the pump and temperature sensor.
- Connect the USB cable from the tank lid to the included 5V/2A adapter.
- Power on—the pump will start circulating water automatically.
2. App Setup (LEYU App)
App Download Page -> https://oiktech.com/support-smart-fish-tank-wp8689-leyu-app/
- Download LEYU from the App Store or Google Play.
- Enable Bluetooth and Location permissions on your phone (required for device discovery).
- Open the app → Tap “+” → Select your WP8689 when it appears → Tap “Save”.
✅ Success! Your tank is now connected and controllable via the LEYU app.
🎛️ Touch Button Functions (On Lid)
| ICON | Button | Operation | Function |
|---|---|---|---|
 | Feed | Short Press | Dispenses food once immediately. |
 | Pump | Short Press | Turns the Water Pump ON or OFF. |
| Oxygen Pump (Optional) | Long Press | Turns the Oxygen Pump (Optional) ON or OFF. |
|
 | Light | Short Press | 1. Turn On. 2. Cycle through light colors (if pressed within 3s). 3. Turn Off (if pressed after 3s). |
🔧 Troubleshooting
| Issue | Possible Cause | Solution |
|---|---|---|
| Pump is noisy | • Air trapped inside • Low water level • Filter screen blocked | • Shake pump underwater to release air • Add water to fully submerge pump • Clean filter screen weekly |
| Pump stops unexpectedly | Feeding mode active | The pump pauses during feeding to protect food from being sucked away. It resumes automatically. Adjust pause duration in the LEYU app under Water Pump Settings. |
| App can’t find device | Bluetooth/Location disabled | Ensure both Bluetooth and Location permissions are granted to the LEYU app. Restart Bluetooth if needed. |
| Temperature reading inaccurate | Sensor not submerged | Always keep the temperature probe fully underwater. |
| Touch buttons unresponsive | Wet surface | Wipe dry before use—moisture can interfere with capacitive touch. |
🧼 Maintenance Tips
- Weekly: Rinse the pump’s intake filter screen to remove debris.
- Monthly:
- Remove the filter box (push in direction of arrow).
- Replace old filter sponge/media with fresh ones.
- Feeder: Refill only with dry pellets or granules (< 0.1mm diameter). Avoid oily or moist food.
- Always unplug before cleaning or maintenance.
⚠️ Critical Safety Reminder: Never run the water pump dry—it will permanently damage the motor.
⚠️ Important Safety Instructions
- Use only the included 5V/2A power adapter.
- Create a drip loop in all power cords to prevent water from reaching electrical outlets.
- Keep all touch controls dry during operation.
- Do not immerse the smart lid—only the pump is waterproof (IPX8 rated).
📄 Downloads
- User Manual (PDF)
- App Guide (PDF)
📞Need More Help?
Our customer support team is ready to assist!
- Email: Support@oiktech.com
- Live Chat: Available on this page.(Mon–Fri, 9 AM – 6 PM GMT+8)
- Warranty: 1-year limited warranty against manufacturing defects
💡 Pro Tip: Visit our video tutorials and common setup tips!
🛡 Warranty Information
- 1-Year Limited Warranty: Covers defects in materials and workmanship.
Claims must be made within 12 months of original purchase with proof of purchase.