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Dissolved oxygen

Dissolved oxygen





Oxygen (O2) is a substance that is important for the life of organisms.

Oxygen is needed by aquatic organisms to breathe.

fish in water need oxygen to breathe.

oxygen can dissolve into water through a diffusion process.

the factors that can affect the amount of oxygen that dissolves in water are as follows:

1. temperature. temperature affects the saturation of water (the capacity of water to absorb oxygen). When the water temperature is high, less oxygen will dissolve.

2. Surface water movement. movement of surface water in the form of waves will accelerate the process of diffusion of air into the water.

3. Air pressure. This air pressure is related to the height of a place above sea level. if an area is higher then the air pressure will be low so that dissolved oxygen will be low.

4. salinity. the higher the salinity value, the less dissolved oxygen will be.

5. aquatic plants. aquatic plants associated with photosynthesis. the photosynthesis process will produce oxyg…

how to keep Maylandia estherae in an aquarium

how to keep Maylandia estherae in an aquarium


Maylandia estherae




Maylandia estherae is a type of fish that lives in freshwater.

Maylandia estherae has orange color. in nature the fish of Maylandia estherae breed by laying eggs.

Maylandia estherae fish live and love the aquatic environment with moderate lighting levels.

Maylandia estherae fish can be kept in an aquarium.

in maintenance in the aquarium there are several things that need to be considered so that the fish Maylandia estherae can grow healthy, including:


1. The pH of the aquarium water used to keep fish is 8.1

2. the level of water hardness in the aquarium is 22 H.

3. the water temperature in the aquarium is 27 C.

4. the amount of water filled in the Maylandia estherae fish rearing aquarium is 100 liters.

5. height of the water in the aquarium that is installed that is equal to 12 cm.

6. in maintenance in the aquarium Maylandia estherae need to be fed, the feed that can be given to the fish Maylandia estherae is in the form …

how to successfully maintain Pseudotropheus fish in an aquarium?

how to successfully maintain Pseudotropheus fish in an aquarium?





Pseudotropheus fish are fish that live in fresh water, these fish breed by laying eggs.

Pseudotropheus fish live in waters and like aquatic environments with moderate lighting levels.

Pseudotropheus fish can be used as pet fish, fish hobbyists can keep fish in the aquarium.

maintaining a Pseudotropheus fish in an aquarium is done by fish hobbyists in order to create a feeling of pleasure for those who see it.

in maintaining Pseudotropheus fish in an aquarium there are a number of things to note namely among them:

1. water in the aquarium must have a pH of 8.0.

2. in maintaining Pseudotropheus fish in an aquarium, the level of water hardness in the aquarium must be worth 20 H.

3. aquarium water used to keep Pseudotropheus fish has a temperature of 28 C.

4. the amount of water filled in the aquarium is 100 liters.

5. the height of the water in the aquarium used to keep Pseudotropheus fish has a height of 8 cm.

6. in mainta…

things that need to be considered in maintaining Aulonocara Fish in the aquarium

things that need to be considered in maintaining Aulonocara Fish in the aquarium.






Aulonocara fish is a type of fish that has an attractive color.

Aulonocara fish live in freshwater and live in aquatic environments with moderate lighting levels.

in nature Aulonocara fish breed by laying eggs.

Aulonocara fish can be used as pet fish in aquariums because these fish have beautiful colors and attractive shapes.

in maintenance in the aquarium there are several things that need to be considered so that Aulonocara fish can grow well. which include:

1. water in the aquarium used in maintaining Aulonocara fish must have a pH of 8.1.

2. the level of water hardness for maintaining Aulonocara fish in the aquarium is 20 H.

3. Water temperature suitable for the maintenance of Aulonocara fish in the aquarium is equal to 27 C.

4. the amount of water used in maintaining Aulonocara fish in the aquarium is 200 liters.

5. the height of the water used to keep Aulonocara fish in the aquarium is 16 cm.

6. In …