Crypt walkeri is a common type of crypt, suitable for beginners due to its low requirements. Low to moderate lighting is enough to keep this plant going and CO2 is not required but will help the plant grow faster and more robust.
Most crypt plants were originally found in fast-flowing limestone bed streams or rivers. These plants need high levels of calcium to thrive in a tank environment, as well as CO2, phosphate, iron, and nitrate. Although they are easier to grow submersed, they will also grow emmersed and can produce flowers above the water. They can be planted into the substrate or attached to a rock or piece of driftwood with a cotton thread or fishing wire.
Tissue culture plants are grown in-vitro (literally: in the glass) in a nutrient-rich synthetic growing medium, either liquid or gel, without the presence of any other lifeforms. This guarantees a pest and disease-free specimen, while also providing accuracy throughout the trade.
Tissue culture plants should be removed from the cup as soon as possible. All plants grow on some sort of synthetic growing medium, ranging anywhere from liquid to jelly to firm gel. This should be removed and rinsed off. Gently massage the roots between your fingers until the gel dissolves away. Most plants can be broken up into smaller pieces and spread out in your aquarium. Smaller pieces are easier to plant.