Species Name: Ulva rigida

Authority: C. Agardh 1823

Common Name: Sea Lettuce

Range: Eastern Atlantic, Caribbean, Indian and Pacific Oceans

Natural Environment: Inhabits intertidal rocks, tidepools, and reef flats where nutrients are high, wave forces low and herbivores are somewhat reduced.

Aquarium Suitability: Rarely seen in the trade, yet when available will make a good food for herbivorous animals, yet not a longterm desired alga for aquariums. In nutrient-rich aquariums with bright light and few animals to eat it, it will grow nicely and may make for a nice display.

Potential Control Species: Fish: See Chaetomorpha aerea

Urchins: See Derbesia marina