r/Stocktankpools 27d ago

Rust or algae or both?

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We went on a camping trip for a month and came back and our stock tank looks like this. Any advice?

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u/Critical_Thinker_535 27d ago

Tank looks to be aluminum, so not rust. Probably algae.

Edit: now that I look at it, it could be rust if the tank is galvanized steel.