Aquatic Saltwater Plants

Mediterranean Algae

• Mediterranean algae can sometimes adapt to an aquarium. Codium bursa forms a sphere that can get as big as 10 inches. Growth is very slow and this alga needs a significant amount of light. Another alga that likes a lot of light is the Codium vermilara, according to Salt Water Fish Tips. Both the Codium bursa and the Codium vermilara look like felt. Those who want a faster growing alga that can thrive in more murky environments can use Halimeda tuna. This alga grows fast in warmer temperatures of about 78 degrees Fahrenheit. The Halimeda also doesn't tend to harm other organisms in the aquarium.

Bubble Algae

• Another type of saltwater plant that some aquarium owners grow is the bubble algae. This alga creates green bubbles on surfaces and rocks. It can quickly take over the aquarium, which can damage other plants, according to Learn About Aquariums. This alga can be removed by hand, though breaking the bubbles of the algae can cause it to spread. Another approach is to incorporate Sohal tang and Indian Ocean sailfin tang that like to eat bubble algae.

Penicillus and Shaving Brush

• Penicillus and shaving brush are used to absorb excessive nutrients found in aquariums, including nitrates and phosphorus. These plants like aquariums that are well-lit and also need iron supplements to survive, according to Learn About Aquariums. They are safe from fish, since fish usually don't like to feed on the hard exoskeletons of these plants. These plants have stalks with bushes that are on top of the stalks. The shaving bushes are shorter, but otherwise look like the penicillus.

Ulvas and Enteromorphs

• If the aquarium has fish that like to feed on plants, the ulvas and enteromorphs are good choices, since they serve as good sources of food. They do not last very long in the aquarium, according to Salt Water Fish Tips. They look like translucent lettuce leaves.

Caulerpas and Green Algae

• Caulerpas are green algae that send up long fronds that look like rhizomes. These fronds are supported by the rhizomes, which send out runners that find places to establish anchor roots, according to Salt Water Fish Tips. These plants grow very quickly in the aquarium. They want moderate light and clear water.