Lead weights wrapped round the base are sometimes used to prevent the newly transferred plants from floating to the surface of the water, but they are very liable to damage the plants unless used most carefully. If planting pots or trays are favoured, they should be big enough and deep enough.
Another reminder about these lovely aquatic greens is to keep them wet. If they are allowed to dry even momentarily for example when being transferred or while in the process of being planted, they will suffer for weeks. In fact, they sometimes will shrivel and die. Great care must be taken if for any reason the aquarium is being disinfected. The plants can easily be damaged by being rinsed in water that is too hot or in a disinfectant that is too strong. One quarter grain by weight of potassium permanganate in a gallon of water makes a strong enough solution to wash off most parasites from the leaves.
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