[Translate to 中文:] A large amount of leaves, old twigs, sludge and dead plant remainders often collects at the pond bottom during the winter months. These should be removed as quickly as possible in spring, best using a net or a special sludge removing pump. Otherwise, a biological inequilibrium due to increased algae growth and forming rot gases may occur.

[Translate to 中文:] Pond keepers should carry out water tests regularly, because snow and ice often reduced the carbonate hardness of the water, leading to strong pH variation and, subsequently, ideal conditions for uncontrolled algae growth. Pond care products (for instance sera pond phosvec) provide support in stabilizing the water parameters again. Additionally removing excess algae nutrients with sera pond phosvec ideally prevents unsightly algae blooms.