
Ordinary thermometer. It is not striking, there is a green division with a temperature comfortable for fish, thanks to this it is easy to see if the water has gone beyond the norm.

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Thermometer RST 01077, white
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🐠 U-BCOO Aquarium Gravel Cleaner Fish Tank: Manual Siphon for Efficient Filter Gravel Cleaning and Water Change in Tanks
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Mini pump Xiaomi Mijia Electric Pump 1S, plastic, black
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