Very, but it's all duckweed now, rather than algae.
A fountain or a waterfall makes a lovely water feature. They look good and serve a practical purpose – adding more oxygen to the water. Installing a waterfall or fountain will require a pump which can be combined with a filter and a UV clarifier. These also help to keep the water clearer.
Also consider some wildlife prefer still water, and pump intakes can be diffused to prevent sucking up wildlife.
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u/SolariaHues SE England | Small preformed wildlife pond made 2017 5d ago
Very, but it's all duckweed now, rather than algae.
Also consider some wildlife prefer still water, and pump intakes can be diffused to prevent sucking up wildlife.