TC Cryptocoryne petchii

Cryptocoryne Petchii is a smaller version of Cryptocoryne Beckettii that originates from Sri Lanka. Its leaves are generally smaller and more slender with dark green to olive brown coloring with a purple underside. While this is the general description, coloration ultimately relies on conditions presented to it. Overall, most Crypts are sensitive to any changes in water parameters and don't prefer to be moved. A normal reaction to this includes "Crypt melt" which is when leaves of the plant begin to rot and "melt" away. This can occur when introduced to a new tank or if water conditions are changed drastically. Trimming withered leaves and stabilizing water parameters have proven to combat this. Once acclimated to its new environment, new growth should begin. Lighting should also be kept to a minimum as high lighting can also cause melt.

Most Crypts were originally found in fast-flowing limestone bed streams and 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 submerged, they will also grow emersed and can produce flowers above the water. Crypts can be planted into the substrate or attached to a rock or piece of driftwood with a cotton thread or fishing wire.