Seachem Replenish 250ml Live Plants Each drop of GH reagent

Each drop of GH reagent corresponds to 1 dGH unit

Suitable for ponds with koi m3 : 3

a weekly water change of over 30 % is recommended for algae problems

which would otherwise slip downwards through the soil

this latest design Chihiros WRGB II Series have built in controller therefor you don’t have to get commander 4 separately

Seachem Replenish 250ml Live Plants Each drop of GH reagentReplenish is a proprietary blend of salts designed to replenish physiologically relevant minerals that are removed by reverse osmosis or deionizing filtration. Replenish restores General Hardness (GH) using a balanced blend of both soft (sodium, potassium) and hard (calcium, magnesium) salts. Restoration of mineral content is essential since a complete lack of minerals will result in osmotic stress in those species whose osmoregulation systems are