Do guppies eat biofilm on the water surface? ❤️???????????? #shorts

Do guppies eat biofilm on the water surface? ❤️????????????
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This is my Low-tech, No-Filter Walstad aquarium with three wild-type guppies.
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I perform weekly maintenance, including a 15-20% water change. Despite the lack of filtration or surface agitation, the water remains crystal clear.
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I believe the wild guppies feed on the biofilm at the water’s surface, contributing to the tank’s clarity and balance!
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About this aquarium:
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Substrates:
Potting mix capped with aquarium sand
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Inhabitants in this aquarium:
- Yellow Rili Shrimps
- Wild type guppies
- Ramshorn snails
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Tank size:
20cm by 20cm by 25cm
(10 liters or 2.64 gallons)
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Plants:
- Synogonium Pink
- Marble Queen Pothos
- Water Wisterias
- Monte Carlo
- Dwarf Water Lettuce
- Red Roots Floater
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Light:
Philips 8W LED bulb Cool daylight
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IKEA TERTIAL Work Lamp with Philips 8W LED Coolday light
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Photo period: 10 hours with 4 hours siesta period. Light on for 5 hours, off for 4 hours and then turn again for 5 hours.
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According to Diana Walstad, plants consume the available CO2 by around midday. Taking a siesta allows the CO2 levels to replenish, providing enough for the plants to use again in the afternoon.
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Follow for more updates.
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#lowtech #nofilter #nano #aquarium #aquascape #walstadmethod #walstadthank #wild #guppy #fish #biofilm