How to Fertilize Brazilian pondweed?
Balanced feed in spring and light repeat in growth season

Brazilian pondweed · Egeria densa
Also known as: large-flowered waterweed
This plant is listed on Schedule 9 of the UK Wildlife & Countryside Act (Northern Ireland) as an invasive non-native species. Although not banned from sale, it is an offence to plant or cause these to grow in the wild IN NORTHERN IRELAND or the REPUBLIC OF IRELAND. Gardeners possessing them should undertake measures to control them. See RHS advice on invasive non-native species for further information
Balanced feed in spring and light repeat in growth season