01 of 07
Brown Algae Picture Gallery
The brown algae photo gallery contains several algae species that are in the division Heterokontophyta and found in the Hawaiian and Indo-Pacific areas of the Pacific Ocean. Many of these algae are found on live rock in marine aquariums. Some of these algae are useful in aquariums for reducing nitrates and phosphate levels.
02 of 07
Referred to as brown or golden algae, which is not algae at all, but diatoms, this is one of the first to appear in the chain algae when the tank conditions are conducive for growth and is usually a precursor to other forms of both desirable and nuisance forms of green macroalgae.
03 of 07
This gallery includes photos of green algae (seaweeds) in the division Chlorophyta found in the Hawaiian and Indo-Pacific areas of the Pacific Ocean. Many of these algae are found on live rock in marine aquariums. Some of these algae are useful in aquariums for reducing nitrates and phosphate levels. Many of these species are considered to be nuisances as they will overrun an aquarium in a short time.
04 of 07
Green hair algae is one of the most dreaded of algae in a saltwater aquarium. It's important to know how to identify and remove it from your tank.Continue to 5 of 7 below.
05 of 07
Purple or pink Coralline algae is the good type algae that every aquarist hopes to see in their tank.
06 of 07
Red Algae Picture Gallery
This photo gallery of red (Rhodophyta) algae shows them in the ocean and saltwater aquariums. Red macro algae species (Rhodophyta Division) do not always appear red. These algae are scientifically classified as "red" because of the way they process light in the red spectrum.
07 of 07
Red slime algae is not a "true" algae at all but classified as cyanobacteria. Most forms found in saltwater range in colors from blackish green to blue-green, orange-yellow to reddish-brown, and often appear as deep purple to fully black in color.