Plant them diagonally in the soil so they will not float up easily. To make your mind up the amount of cups of foreground carpeting plant you would like in your aquascape, use the rule that a cup can protect an area as massive as your fist. You do not need to plant far too densely; as an alternative, just wait a bit and you'll get dense development

All round, It's not advisable to keep koi indoors. For anyone who is overwintering them, This is often A short lived setup and a greater alternate than becoming frozen into a solid block of ice. At times it may take quite a long time to come up with an plan, so down below We've a couple of examples to aid get you started out. Aquascape swimmi