Facts about Dahlia pinnata. 1  Dahlia pinnata is a tuberous perennial, growing to 1 m tall. 2  The Dahlia pinnata flower petals are used in salads. 3  The Dahlia pinnata flowers are hermaphrodites and are pollinated by insects. 4  The first modern dahlia hybrids are the result of crossing between Dahlia coccinea and possibly Dahlia pinnata.
Goldfish Development. Baby goldfish are born much darker than they will be as adults. This may be because dark colors helps these small, vulnerable fish escape the attention of predators. With proper husbandry, the fish gradually change color and develop orange or gold scales. Fancy goldfish may develop color patterns including white patches.
Hatching and Raising Fry. The goldfish eggs take up to a week to hatch, depending on temperature. At 50 to 60 degrees F, they may take up to one or even two weeks to hatch but at 75 degrees F, they may hatch in 4 to 5 days. The newborns will lay around for another week or so.