Need help maintaining a small pond and water plants

I have a small garden pond (about 1.5m across) and would like someone to help with regular maintenance. Tasks include algae control, checking water quality, removing debris, trimming aquatic plants, and ensuring the pump and filter are working properly. I’d prefer a gardener who has experience with ponds and suitable equipment. Please provide an estimate for a routine monthly visit, and note any products you recommend. Access is straightforward, and there’s a tap nearby for water if needed. Availability on weekday mornings suits best.