The Southeast Asia Backwater Stream Environment includes the smaller streams that contribute to the larger rivers of mainland Asia, and those in the Malay Archipelago. These streams tend to be slow moving, low in oxygen, and grow lush vegetation due to a high level of iron in the water. Colorful heavy-bodied fish are found in this niche. A nice deep reddish-brown to brown, small size gravel or sand is recommended to simulate the natural substrate. Accent with reddish-brown to brown colored rocks and pebbles.