UP AQUA D-632 Powered Fighting Fish Betta Box Fish & Aquatic Options:D-632 - Internal 3 in 1 Boron is one of the

Boron is one of the trace elements found in the natural environment of corals

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UP AQUA D-632 Powered Fighting Fish Betta Box Fish & Aquatic Options:D-632 - Internal 3 in 1 Boron is one of theSize: 23 x 12 x 13 cm Style: 4 in 1 outside tank, 3 in 1 inside tank Features of Betta box: 1. Allow fresh water to enter through power operation, generate sufficient oxygen, and provide a high quality environment. 2. If you want to see the heroic posture of the fighting fish, you can take out the colored isolation sheet. 3. If you want to watch fighting fish fight, you can take out both isolation sheets. Features of the isolation box: 1. Different