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Learn how to care for large marine fish, recommended diet and habitat setup. Find the right food, supplies and equipment at your neighborhood Petco.
Updated on November 13th, 2025
Small Marine Fish are favorites with marine aquarists and includes a wide range of species.
Updated on November 13th, 2025
Wondering why you may need CO2 in your fish aquarium? Learn the basics from a Petco aquatics specialist.
Updated on November 13th, 2025
Learn how to care for Foxface fish & Rabbitfish, recommended diet and aquarium setup. Find the right food, supplies and equipment at your neighborhood Petco.
Updated on November 13th, 2025
Learn how to take care of Puffer Fish, recommended diet and tank size. Find the right food, supplies and equipment at your neighborhood Petco.
Updated on November 13th, 2025
Guppies or Neons are excellent "starter" fish. Care is simple and they are inexpensive. A standard 10 gallon tank is recommended to start. Most people don' t realize the amount of "work" needed to maintain a tank. Filter maintenance, monitoring water chemistry, water changes, monitoring fish health and providing a balanced diet are just a few items that need regular attention to keep a tank thriving. Even though fish aren't as cuddly as cats and dogs, they do have their own personalities and even respond to their owners, especially at feeding time! Studies have shown that simply watching fish in a tank can lead to a reduction in both heart rate and blood pressure. It is quite relaxing.
Updated on August 12th, 2025
Thanks for your question about your fish, and congratulations on your new family members! I didn't see how recently the tank was set up, but there are a couple of things that could be going on. I would start by checking your water quality - any abnormalities in water quality can make fish have abnormal behaviors, and the water looks a bit murky in the photos you provided. There may be parameters that need to be addressed depending on what you find. If you do not have a water quality kit, they can be purchased at the pet store or an aquarium store, or you can take a sample of your water in for evaluation to these places as well. Some will charge a small fee for this service, just so you are prepared. Also, with recent tank set ups, it can be stressful for fish as they are in a new habitat. I would recommend keeping the light on for only a few hours per day to start, as the bright lights can be shocking for them (since fish don't have eyelids). Gradually you can increase the length of t
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
Hello and thank you for reaching out to Boop by Petco. Begin your preparation for the move a week or so before the day itself, by removing ornaments and other obstacles from within the tank. Each day leading up to the move, perform a 15-20% water change, so that by the time you are ready to move, the tank water will be clean but also stable and mature. On the day itself, preserve as much of the original tank water as possible, to re-introduce into the tank at the other end. The best way to transport your fish is within thick bags, like the ones pet shops provide when you buy new fish. Make sure that the top of the bag is well sealed to prevent spillages. Store the bags containing your fish in a sturdy box, padded with polystyrene or other filled bags to keep the bags secure and upright. Cover the box, as darkness helps to reduce stress in your fish, then secure the box safely within your vehicle. Since your journey is more than a couple of hours long then you may need to arrange for a
Updated on August 12th, 2025
Hi there! Thanks for using Boop by Petco! This is the same question I asked myself a few years ago when I started with my first saltwater aquarium. It really depends on a lot of factors. Consider that it requires a significant amount of time and money commitment if you want to do it the right way. It is really time consuming though extremely rewarding. Water quality and equilibrium of the tank are key and ensuring both requires using the right equipment and constantly testing the water and adjusting things as needed. I would consider reading a lot about it before commiting any money to it. I personally love it but it really is a second job I have every Saturday morning just to take care of my tank. Good luck!
Updated on August 12th, 2025