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Comparing different types of aquarium water filtersFeatured science projectScience project video

Conclusion

Our hypothesis has been proven to be correct - sponge aquarium filters  are more effective than under-gravel filters.

Aquariums at least require a mechanical and a biological filtration system to keep the water inside the tank healthy and conducive for fish to live. The under-gravel filter and the sponge filter are able to perform both biological and mechanical filtration functions.

Also consider

To improve the reliability and accuracy of our results, a larger sample of participants should be used.

This science fair project may be repeated, this time, with different types of filters like the power filter or canister filter.

Modify the science project experiment, using different types or different quantities of fish in each aquarium.

References

Selecting a filter - http://freshaquarium.about.com/cs/beginnerinfo/l/aa110998.htm

Aquarium filter and fish tank filtration - http://www.fishlore.com/Filtration.htm

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Complexity level:
6
Project cost ($):
90
Time required:
1 day to prepare, 28 days for the science project experiment
Material availability:
Easily found
Safety concerns:

Basic safety requirements