Beneath the Surface with QYSEA FIFISH V-EVO 

22 December 2025

Behind the still water of an aquarium lies a world of constant work. While visitors see calmness, caretakers see a living system that requires attention every hour of the day. The clarity of the water, the balance of oxygen, and the condition of each coral structure must stay in harmony. Even small changes can affect the health of the fish and plants that call it home. 

Keeping the balance is not an easy task. Divers and maintenance teams spend hours cleaning tanks, inspecting the filtration system, and ensuring every sensor and pump runs smoothly. The work demands patience and precision, but it can also be tiring and risky. 

Today, technology is helping make the job easier and safer. The QYSEA FIFISH V-EVO, an advanced underwater drone, has become a reliable companion for aquarium maintenance and inspection. It allows caretakers to explore underwater areas freely without entering the tanks themselves. 

A Clearer Way to Observe and Maintain 

The FIFISH V-EVO is equipped with a 1/2.3-inch SONY CMOS camera and 2000-lumen LED lights, giving operators a bright, detailed view of the underwater environment. The camera delivers crisp images in real time, revealing every coral, rock, and grain of sand even in dimly lit areas. 

Aquarium staff use the drone to observe fish behavior, check for algae buildup, and ensure all components are working as intended. The drone’s smooth movement and quiet operation allow monitoring without disturbing the marine life. 

One of its most impressive tools is the robotic arm. With steady and precise movements, the arm can pick up small debris, retrieve objects, or help clean tight spaces. The retrieval hook and net attachment add even more flexibility, making daily maintenance faster and more efficient. 

Another feature that stands out is the metal detector. In large aquariums filled with rocks and coral decorations, small tools or screws can easily get lost. The metal detector helps locate them safely without draining the tank. These functions make the FIFISH V EVO more than just a camera; it becomes a practical underwater assistant. 

Safety and Simplicity at Work 

The FIFISH V-EVO makes daily maintenance safer for staff. Instead of sending divers into enclosed tanks, caretakers can control the drone from outside using a tablet or smartphone. Through the ROV management app, they can adjust movement, monitor depth, and record video for future review. 

The live footage helps detect small problems before they grow into larger issues, such as cloudy water, blocked filters, or unusual fish behavior. Early detection means faster action, leading to healthier aquatic environments and reduced maintenance downtime. 

The drone’s precise control system also makes it easy to navigate around coral structures and decorations without touching them. This helps maintain the natural flow of the aquarium and protects fragile elements from accidental damage. 

Key Features and Benefits 

  • High-quality visuals – 4K imaging and bright LED lighting for clear underwater views. 

  • Robotic arm and attachments – Enable cleaning, retrieval, and maintenance tasks easily. 

  • Real-time control – Live streaming and recording through a mobile app. 

  • Improved safety – Minimizes diver exposure to enclosed or hazardous environments. 

  • Efficiency and accuracy – Faster inspections and cleaner results with minimal effort. 

The QYSEA FIFISH V EVO shows how innovation can bring care and convenience together. It helps caretakers focus more on creating healthy environments instead of struggling with manual work. Every quiet movement of the drone under the water represents a step forward in how we maintain and understand aquatic life. 

With better visibility, improved safety, and tools that respond instantly, the FIFISH V EVO proves that technology can make every day work simpler and underwater worlds cleaner, healthier, and more alive. 

Tags: 
  • Features

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