environmental
aerated pond
aerated water
aerating
aeration
background
beautiful
care
cold
conservation
deep
drill
environment
environmental protection
environmentally friendly
few
fish
fish industry
fresh
fresh water
frost
frozen
group
hobby
hole
ice
industry
lake
landscape
melted
melted ice
melting
melting ice
nature
no people
outdoors
pond
protection
recreation
river
round
season
seasonal
snow
snowy
surface
water
weather
white
winter
定額
Holes in ice, covering aerated fish pond during winter season. Ice is melting, because of aeration process, so fish population is protected. Seasonal background with environmental protection concept.の素材 [FY310136362897]
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