What Is Slime Algae?

Description

• Microscopic organisms like slime algae possess the ability to reproduce by cell division, thus allowing for fast growth. Cells form long chains that cover pond and aquarium surfaces. Slime algae uses photosynthesis to generate its own energy for reproduction and growth. The name "algae" denotes any aquatic organism that has the ability to utilize photosynthesis.

Causes

• Because photosynthesis involves the transformation of light into energy, too much light causes slime algae to grow out of control. One factor that impacts this issue is the presence of other plants competing for the same light. Those plants can counteract the algae and prevent overgrowth. Another cause is nutrients. Algae, along with any other life in a pond or aquarium, need nutrients to live. Nitrates and phosphates are the main nutrients and too much will lead to algae growth.

Cures

• Several possible cures exist for slime algae growth in an aquarium. Limit the nutrients available to the slime algae. Either limit the total nutrients or provide competition for the algae in the form of plants. Adjust the lighting to limit growth. Try changing the light bulbs; weak lighting can contribute to the problem. Watch the water quality as it needs to remain high quality to keep the algae under control.

Toxins

• Some slime algae contain toxins. Because there is no way to know without special testing which algae are toxic, do not touch any slime algae. This applies to pets who may be around ponds or lakes. Do not swim in water with slime algae. The two main toxins are mycrocystins and anatoxin-A. Mycrocystins remain stable in water and are quite common while anatoxin-A is a neurotoxin that affects memory and causes lethargy.