With 'Tiger' and 'Red', two pretty new forms of Cryptocoryne spiralis have entered the market via ADA few years ago. They are still rarely available in Europe. The Spiral water trumpet from southwestern India is an extremely polymorphic species, however the form 'Tiger' is unique. It resembles Cryptocoryne albida "Brown" but gets larger and grows faster. Its submerged leaves are very narrowly lanceolate with smooth to wavy edge, brown-red with dark "tiger stripes" that are more pronounced than in Cryptocoryne spiralis 'Red'. It also differs from the latter by wider, shorter, more spreading leaves under same growth conditions. Sometimes the midrib is vividly green, but less often than in 'Red'. In our aquariums, the 'Tiger' has formed nearly 30 cm long, 1,3 cm wide leaves but may become considerably taller.