FEATURE: · Superior filtration system. · High-efficiency lighting system ensures ample brightness. · Contemporary design with advanced technology. The unique combination of these aquariums is patented, allowing two aquariums to be joined together to form a circular aquarium. Both lids can be easily opened simultaneously without any hassle.

Features: Dual operation mode for seamless real-time control and easy automatic feeding. The real-time control option allows you to schedule feeding times from 1 to 4 times within a 24-hour period. The simple use mode lets you set the interval for the next feeding without needing to configure the real-time clock. You can manage the portion size by selecting a feeding mode that allows for either 1 or 2 servings per feeding session. Powered by 2 x 1.5V batteries, featuring an LCD screen to display the time and control settings. Low battery indicator and alarm for your convenience.

Features: Intuitive dual operation mode for real-time control, along with automatic timed feeding; The real-time control mode allows you to schedule feeding times within a 24-hour period, with options for 1 to 4 feedings (up to 4 times); The easy-use mode lets you simply set the interval for the next feeding without needing to adjust the real-time clock; You can manage the portion size for each feeding by choosing a feeding mode of 1 or 2 rounds per serving. Powered by 2 x 1.5V batteries, featuring an LCD display for time and control details; Low battery indicator and alert system.

Features: Aluminum alloy integrated pump core, offering high durability and excellent heat dissipation for longevity; Includes an air outlet buffer silencer for quiet operation;· Generates substantial airflow with elevated air pressure; Oil-free lubrication ensures no gas contamination, boasting an attractive design, perfect for aquaculture, seafood markets, and hotel dining establishments;

The BOYU BIO CERAMIC SYSTEM CR-500 (6924781200968) is designed to enhance leaching, facilitating the growth of NITROBAERIA without the need for backup. This product ensures more effective leaching in various water conditions, activating its antivirus properties while enriching the oxygen levels. It significantly boosts filtration efficiency as well. Ideal for both fresh and saltwater aquariums. Maximizes the biological filtration potential of low porous filter rings. This item is a blend of soft active carbon and ceramic materials. Chemically stable and fully compatible with the natural chemical environment of existing micro-organisms. Features high permeability, supporting both aerobic nitrification and anaerobic denitrification, leading to more stable water conditions—making it the finest biological filter medium available. Material: Active carbon and ceramic Color: White Weight: Approximately 500g per bag Outer Diameter: 1.2cm / 0.47 inch Inside Diameter: 0.4cm / 0.16 inch Height: 1.1cm / 0.43 inch Packing: BOYU CR-500 Aquarium Bio Ceramic Ring Box

Bio Filtration Bioball 37mm EXCEPTIONAL FILTRATION! Each bio ball features spines that significantly enhance the surface area to nearly 2 square feet, allowing a substantial number of beneficial bacteria to thrive. These helpful bacteria work to decompose harmful organic waste. You will receive around 300 bio balls, each measuring 1-1/2 inches, conveniently packaged in a mesh bag. Simply rinse and they are ready for use. STURDY AND DISTINCTIVE! The spherical design and carefully arranged spines of our bio balls enable them to fit snugly into any filter shape or type without sacrificing surface area. Crafted from high-density plastic, these balls are lightweight yet durable enough to maintain their shape and will never degrade or wear out. Bio balls can be utilized loose or within the mesh bag featuring a plastic zipper. RELIABLE! Our bio balls are constructed from 100% polypropylene, making them a dependable choice for biological filtration in both fresh and saltwater environments. They are designed for use in koi ponds, water gardens, freshwater aquariums, saltwater tanks, aquaponics systems, fish hatcheries, and much more. SUPERIOR TO LAVA ROCK: Over time, porous lava rock can become blocked with debris, reducing its surface area and diminishing its capacity to support beneficial bacteria. In contrast, the uniquely arranged spines of our bio balls allow most debris to flow through easily. Lava rock features tiny pores that make cleaning a challenge, whereas bio balls typically do not require cleaning in most applications. Additionally, a bag of wet lava rock is significantly heavier than our bio balls. EASY TO CLEAN - When organic waste accumulates in the bio balls, they can be gently rinsed in dechlorinated water to eliminate debris and rejuvenate them. To prevent large particles from getting trapped in the bio balls, consider using our FilterFIrst dual-density bonded filter pad or a water polishing pad.

BOYU BIOCHEMICAL SPONGE FILTER This straightforward internal filter operates using the power of any air pump it is connected to via a flexible hose. It can also serve as a pre-filter for external filters or power heads. Sponge filters offer effective mechanical and biological filtration, depending on the filter size and the bio load of your aquarium. They are budget-friendly, requiring only a minimal amount of energy to operate the necessary air pump. Diameter: 7.5 cm Height: 9.3 cm Height including exhaust pipe: 19 cm (the exhaust pipe can be trimmed as needed)