Most eye-catching feature of Cryptocoryne Flamingo is the light to dark pink colouration of the leaves.  It grows very slowly in aquaria and must have good lighting to ensure successful cultivation. A wonderfully decorative addition to Nano Tanks combined with mosses or Hemianthus Cuba.  The pink colouration may take a few weeks to appear on new leaves .

Difficulty: Medium
Origin : Cultivar
Amount of light needed : High
CO2 : Low, medium
Usage:  Aquascaping
Growth speed : Slow
Height:  10-15 cm
Plantation zone : Nano tanks, Foreground, Midground
Temperature:  22-28 °C
pH: 5-8 
Leaf colour: green, pink

The plant you receive is a plant grown in vitro and looks like photo 2, 4 (without cup). 
After planting in the aquarium, the plant will release underwater leaves, which, depending on fertilization, will look like the main picture.

What cause and understanding of „Cryptocoryne melt”:
All Cryptocoryne can be sensitive to changes in water parameters. It is normal for the plant to undergo “crypt melt” when introduced to a new tank, or if water conditions change too much (like lighting intensity, pH, gh, kh, Irregular water change, poor water quality, changing location of the plant, temperature, fertilizer dosing).  Established plants can suffer from melting as well. In that case we advise to prune the leaves as they melt. This will help plant focus more on producing new leaves rather than struggling to keep the old ones. Do not worry if it will happen. Your plant will begin to grow back within a month or sooner depending on the conditions.