Grass

Grass guppies get their name from the fine speckling across the tail, dorsal fin, and sometimes the rear body of Poecilia reticulata. The dots create a seeded or grass-like texture, usually smaller and more even than leopard spots and less connected than cobra or lace markings. Blue grass, red grass, yellow grass, and purple grass are common color directions, many shaped by Japanese and other Asian show-breeding lines. In a strong male, the speckling covers the caudal fin evenly without large blank areas or smeared patches.

The pattern can break down quickly in mixed breeding, so grass strains are usually kept in dedicated tanks. Young males may need time for the tail field to fill in, and several candidates are often grown out before pairs are chosen. Aside from line selection, they are standard fancy guppies needing clean warm water, small varied foods, and tankmates that will not shred the fins. For buyers, consistent dots on both tail lobes say more about line quality than extreme tail size alone.

Colors: Albino, Bicolor, Blue, Cobra, Dragon, Dumbo Ear, Endler, Grass, Green, Half-Black, Japan Blue, Koi, Leopard, Metal, Mosaic, Moscow, Multicolor, Neon Blue, Platinum, Red, Snakeskin, Solid, Tuxedo, Wild Type, Yellow