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Setups

Learn about different fish tank setups, freshwater aquariums and saltwater aquariums.

African (Mbuna) Cichlid Community
The choice of filtration system, as much as tank size, determines the safe stocking limits for a tank. More>>
Aquariums at School
Aquariums in classrooms are a great way for kids to learn about fish and biology — and they're fun too! More>>
Nature and the Closed Aquatic System
The natural history of fish dictates the environment they need in an aquarium. More>>

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Dissolved Oxygen
We recently tested the dissolved oxygen level in our pond and found that it was 5 ppm. Is that too low for the koi in the pond? More>>
First-Time Pondkeeper
It all started with a tub of water. More>>
Indoor Pond
Insufficient light can be the most difficult problem when growing pond plants inside. More>>
Pond Filters
To filter or not to filter, that is the question. More>>

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