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Wondering why you may need CO2 in your fish aquarium? Learn the basics from a Petco aquatics specialist.
Updated on November 13th, 2025

There's a wide array of heating solutions to provide the optimal temperature for your aquatic friends to thrive. Dive in to navigate options & ideal wattage.
Updated on November 13th, 2025
Learn how to care for a Tetra, recommended diet & habitat setup. Find the right food, supplies & equipment at your neighborhood Petco.
Updated on November 13th, 2025
Learn how to test your aquarium water. Poor water quality stresses fish, which leaves them susceptible to disease and possibly death.
Updated on November 13th, 2025
Learn how to care for semi-aggressive fish, recommended diet & aquarium setup. Find the right food, supplies & equipment at your neighborhood Petco.
Updated on November 13th, 2025
A fish tank will need a filter, a light/hood and a heater. Make sure the filter is rated for at least twice the tank volume. The heater should be adjustable since water temperature will depend on the species of fish. Good "starter" fish include Tetras, Mollies, Danios or Tetras. A new tank should be set up and left running empty for several weeks before adding fish. A pinch of flake food can be sprinkled in daily. This "cycling" will allow a population of beneficial bacteria to colonize the tank and filter. These bacteria will break down wastes (ammonia, nitrites and nitrates) which are toxic to fish.
Updated on August 12th, 2025
At the very least, a 10 gallon tank with a filter, heater, hood and light. Ideally, the tank should be up and running (without fish) until it cycles properly. This means there needs to be sufficient time for beneficial bacteria to colonize the tank and filter to be able to break down wastes, namely ammonia and nitrites and to a lesser degree, nitrates. This can take several weeks to occur. You can cycle a tank with fish in it, but it will require daily testing of water chemistry to prevent a toxic build up of ammonia and/or nitrites. Either can kill your fish if not treated. Follow this link for a FAQ regarding Glo Fish: https://www.glofish.com/about/faq/ Follow this link for more about cycling a tank: http://www.firsttankguide.net/cycle.php
Updated on August 12th, 2025
When used as instructed, plant nutrients and fertilizers designed specifically for aquarium plants will not harm aquarium fish. Allow new aquarium plants to settle and establish themselves before adding any fertilizers. Use aquarium plant substrates such as CaribSea Eco-Complete Plant Substrate http://www.drsfostersmith.com/product/prod_display.cfm?pcatid=9087 to get your plants established faster. Seachem Flourish Advance Natural Phytohormone Supplement http://www.drsfostersmith.com/product/prod_display.cfm?pcatid=33890 will help stimulate root growth vital for overall plants health. Even though you have plants with low to moderate light requirements, be sure to use aquarium light specifically designed for planted aquarium use (sometimes called plant lights) and have the lights on between 10 and 12 hours a day. You may need to adjust the photoperiod (the amount of time the light is on) depending on how your plants are doing and to prevent unwanted nuisance algae growth.
Updated on August 12th, 2025
Full-spectrum light is light that includes all wavelengths that are useful to plant and animal life. It is beneficial to birds in that it mimicks their natural lighting in the wild. The link below leads to a short article about the benefits of full spectrum lighting. You can purchase full spectrum bulbs online or in most hardware or home improvement stores. http://www.featherbrite.com/beoffuspli.html
Updated on August 12th, 2025
Thanks for reaching out about Tofu. Yes, you can provide UV light for your rabbit through the use of a reptile UVB light. This is a common way for rabbits to get UVB light. Sunlight is the most effective way to provide UVB light, but if you are unable to get Tofu outside, artificial light is a good alternative. UVB bulbs must be changed every 4-6 months, whether the bulb burns out or not. When choosing a UVB bulb, you want to have some information available. First will be how you are going to suspend it over her - you will need to ensure that she is unable to contact the bulb directly as she could get burned, and that the bulb is at least 8-10 inches away from her so she doesn't get burned as well. Once you know how you will suspend the light, then you will measure the distance from the light to her level - ideally this would be no more than 18-24 inches away. Most UVB bulbs can't penetrate a distance that is further away than this. Once you have the distance measured, then you can go
Updated on August 12th, 2025