Most tanks are outfitted with one or more filters, which are meant to collect waste, though they do not fully remove it. Each tank is set up a bit differently, some with disposable filters which can be tossed and replaced (usually on a monthly schedule), while others use permanent ones. If your filter uses multiple disposable cartridges, alternate changing them out so you're not introducing a slew of entirely new filters into your system at once, and removing all the beneficial bacteria. For those with tanks that use permanent cartridges, rinse them in some of the siphoned-out water or de-chlorinate a batch for cleaning purposes.
- American Pet Products Association. "Industry Statistics & Trends: Pet Ownership." (Nov. 3, 2010).http://www.americanpetproducts.org/press_industrytrends.asp
- Skomal, Gregory. Freshwater Aquarium: Your Happy Healthy Pet. John Wiley and Sons, 2005. (Nov. 3, 2010).
- Wickham, Mike. "Cleaning Fish Aquariums." Fish Channel. (Nov. 3, 2010). http://www.fishchannel.com/fish-health/healthy-aquariums/dont-destroy-helpful-bacteria.aspx
A new butterflyfish species was discovered while it was just cruising around its tank at the Steinhart Aquarium. Learn more at HowStuffWorks Now.