Algae eaters
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If you notice small or large green spots, or even some hair algae in your freshwater tropical aquarium, you usually try to remove them manually. After careful removal or cutting sick
plants for weeks you’ll find that it’s almost impossible to displace all the algae which grow, grow and grow all the time. An ordinary aquarist may consider introducing
algae eaters into the tank at this point. Fish shops like this kind of customer since it’s easy to persuade a hopeless fishkeeper that some fish will fix the problem in a short time. Moreover, a skillful merchant recommends more than 1 or 2 fish in order to remove algae from your fish tank as soon as possible. This way people buy from 5 to 10 fish no matter that they don’t know anything about their demands, habits, etc. In order to avoid weedy aquariums you need to understand what algae is, what helps it’s growth and what to do if it gets out of control.
What helps algae growing
1. Too little/much
lighting,
2. Inappropriate feeding which leaves
food to decompose,
3. Bad
filtration and aeration,
4. A lot of sunlight,
5. Frequent temperature changes,
6. Dead fish or
plants in the tank.
What helps to prevent algae
1. Stable water conditions,
2. Good
filtration and aeration,
3. Stable temperature,
4.
Algae eaters,
5. Water changes (not necessary),
6. Planting new
plants (
planted tanks host less algae than aquariums with few
plants only),
7.
Snails; They usually eat algae. Their help is significant when there are many
snails in the tank.
Ramshorn snails are very helpful for this purpose.
Generally speaking, algae isn’t bad in all cases. If it doesn’t allow you to see through the glass you should do something about it. Otherwise you don’t have to worry about it, since Ancistrus newborns appreciate it a lot. Of course, you should let your Ancistrus breed first.
Fish which are considered to be Algae eaters
Ancistrus species
Otocinclus affinis
Hypostomus punctatus
Crossocheilus siamensis
Gyrinocheilus aymonieri
Tools used for removing algae in freshwater aquariums can’t replace
algae eaters since they completely depend on their usage and usability. Everyone should understand that a brush can’t be used in an overplanted tank, behind
rocks, inside caves, etc. Unlike plastic or metal tools,
algae eaters can reach any place at any time; It all depends on their appetite and size. That’s why Ancistrus’ and other species’ newborns are the best solution for eating and removing the algae.
Generally, algae as a whole can be divided into groups depending on their colouration, size, and conditions when they develop.
The green dots
First, algae is a natural part of every tank which probably exists in every aquarium except new ones. In my experience, the most seen and the most common is the ’green dots’ algae which grows on glass,
rocks,
plants,
driftwood and various
decorations. This algae can be found in tanks with high levels of
light. You will probably not need to buy
algae eaters for removing it since green dots usually don’t take over the entire tank and grow sporadically in sizes of about 0.1mm up to 2-3mm. In addition,
algae eaters don’t eat it. If using a brush or other tools, you will spend a lot of time on it, because it’s very difficult to remove, especially from glass.
The hair algae
I have had trouble with this algae ever since I bought another 25W
light. It develops in tanks with a high
ammonia level and plant cutting helps it to grow. Hair algae grows well, especially on Vallisneria species. One way to fight against hairs in aquarium is to cut it from time to time as well as
plants which are sick. You don’t need to remove the whole plant, just the part where the hair grows. Sellers like to sell Ancistrus species as the first solution. I wouldn’t recommend them since only small specimens (up to 1cm in length) eat this algae. Adult fish are too lazy to climb the
plants to eat it. They like granules, vegetables, beef heart much more than the hair algae and will rather wait until you feed them.
Common pleco (Hypostomus punctatus) is considered to be an outstanding solution, however as they grow up their feeding habits change.
The brown algae
The brown algae can be found in new aquariums, especially because of lack of
water chemistry stability. Subdued
lighting supports the growth of this algae. As time goes by it usually disappears. Common
algae eaters tend to eat it, however old fish will rather wait for granules. Bear in mind that 4 or 5
algae eaters will not solve this problem in a week. This algae likes
Java moss. When I had my first tank with
Java moss, this plant became brown instead of nice green colours known from
pictures. As a greenhorn I though the
Java moss was dead; I was wrong is all I can say now. It was taken over by brown algae.
The Blue-green algae
This algae could be potentialy harmful, and not only for your fish. Blue-green algae are
bacteria which grow in warm, shallow, slow moving or still, freshwater. There are known as cyanobacteria too, but they are more commonly known as
pond scum. They need
light for life. That is why they are photosynthetic
bacteria. The first known species were blue-green. Now we know of algae from olive-green to red in color.
Removing
the blue-green algae isn’t difficult. You only need to aerate and
filter the tank very well.
Red/Brush algae
I don’t have any experience with this algae, however sources say it prefers high
pH and
water hardness levels. The
Siamese algae eater (Crossocheilus siamensis) eat it pretty well.
The Green dots algae
The hair algae
The hair algae
Additional tips
Don’t use chemicals for removing the algae. Use
algae eaters instead. Otherwise chemicals could cause serious damage to fish or
plants. Chemical use is recommended if only there is no fish in the tank. Wait some time before introducing fish into a tank which was treated by chemicals previously. Besides waiting, use a powerful
filter and aerate the tank as much as possible. The delay between treating and introducing fish shouldn’t be less than 1 week.
Useful links
thetropicaltank.co.uk/algae.htm,
fishpondinfo.com/sae.htm
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Algae eaters
has been viewed times since June 30, 2009.
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