The bacteria/algae itself isn’t really harmful to your fish or you, unless it grows in extremely large quantities. It likes to grow in thick blue sheets across the substrate, rocks and plant leaves. How does algae grow?Ĭyano grows in mostly static environments, or where there is little water movement.
There are some treatments for this, but not all are safe for fish and not all of them work effectively. It also has a distinct strong smell, which makes it easily recognisable! It is identifiable as a thick green/blue slime which coats surfaces, mainly growing on the sand/substrate. It is a relative of algae and behaves in a similar manner, but it is more of a photosynthetic bacteria (a microbe that feeds on light.) What is Cyanobacteria?īlue green algae is the most commonly encountered form of Cyano in freshwater environments, it is very difficult to get rid of and grows rapidly.
Weaker plants and soft leaves plants will often fall victim to aggressive algaes much more than a healthy growing plant. However, a strong healthy plant will often combat algae, as they produce an enzyme which stops spores from growing on their leaves and roots. However, Cyanobacteria, which is very similar to algae, can produce a mild toxin that in very high amounts can be poisonous.Īlgae can however, be of a nuisance to plants, as it grows over their leaves and envelops them, blocking light and nutrients from them, stunting their growth and killing them. Nearly all algaes are harmless to animals. Another large part of their success is their simplicity.Īlgae are perhaps some of the oldest and simplest organisms on our planet – the ancestors of algae date back to around 1.5 billion years ago, long before animals and plants had evolved! This makes algae very good at spreading around, and very successful. Goldfish in question actually have a large portion of their diet taken up by algae it is a main part of their natural diet.Īlgae reproduces by separating itself as it grows and or dispersing spores across the water. It is highly nutritious for fish and aquatic invertebrates, some of whom only eat algae and nothing else. Some algaes grow in sheets over a surface, some form little hairy tufts and look like grass, others grow in the water itself and stain it green.Īlgae is a main food source for many aquatic organisms because of its abundance across the planet’s ecosystems. 7.1 Manageable algaes What is pond algae?Īlgae is a plant like microorganism, they are tiny cells which grow in vast numbers and form various structures to extract nutrients from the water and light from the sun.Įach type of algae has a different appearance and grows in different ways.
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