Two Easy Ways to Start Earning Rewards!
Become a member today!
Members-only pricing and offers, personalized care notifications, Vital Care points back on every purchase and more!
Become a credit card member today!Earn 2X Pals Rewards points at Petco
when you use Petco Pay!APPLY NOWLearn More About Petco Pay Benefits
Tetra Saltwater Heating & Lighting
Related Articles & Questions
- Care Sheets
Build Your Thriving Saltwater Tank: Easy Setup for Marine Life
Learn how to set up a saltwater fish tank and key considerations regarding placement, supplies needed, and the overall set up process.
Updated on October 23rd, 2025
- Care Sheets
Advanced Boxfish & Cowfish Care: Ultimate Tank Setup, Food, & Safety
Learn how to care for Boxfish & Cowfish, recommended diet and aquarium setup. Find the right food, supplies and equipment at your neighborhood Petco.
Updated on April 9th, 2026
- Home & Habitat
Aquarium Hardscape: The Complete Setup Guide
Discover how to hardscape your aquarium here at Petco. Visit Petco and check out aquarium hardscape ideas, solutions and much more for your fish.
Updated on July 17th, 2026
- Home & Habitat
Blackwater Aquarium: Setup, Fish & Care Guide
Search Petco to learn about blackwater fish aquariums. We want to help you decide what lifestyle is best for your unique fish.
Updated on June 19th, 2026
- Care Sheets
Marine Shrimp Care for Beginners: Tank Setup, Food, & Compatibility
Learn how to care for Marine Shrimp, recommended diet & aquarium setup. Find the right food, supplies & equipment at your neighborhood Petco.
Updated on April 9th, 2026
- Food & Nutrition
What fish and supplies are best for a beginner's small tank?
Without anything to use for scale, it is hard for me to tell how big your tank is, but in general it seems very small. Also, the water that is in the tank appears very cloudy right now, so that would be the first place to start. Water quality is very important, and will make or break your ability to house and care for fish. I would recommend getting a good filter system (you can visit a local pet store to assist you with brands in your area, as I am not familiar with what you can get in India). Be sure to bring the measurements (height, length, width) of your tank, or the gallons or liters so they can tell you what capacity of filter you will need. Everything else will depend on what types of fish you get - if you plan on getting multiple fish, they will need to be small - a general rule of thumb is one square inch of fish per gallon of water. Depending on the species you get, you may need to also get a bubbler to ensure there is enough oxygen in the water for them, and you will also likely need to get some sort of substrate for the bottom and cage furniture (different species have different air requirements, and some are secretive and like to hide). You may also need a water heater, depending on the species you would like to house. But, depending on how small your tank is, it may be hard to get a water heater that will fit. The food type will also depend on what species you get, as there can be differences in diet type between species. I hope that gives you a place to start, and good luck!
Updated on September 24th, 2025
- Vet Q & A
Is a 1-foot marine tank big enough for fish? What can I put in it?
It is very difficult to get a good biotope in a just 1 foot long tank unless it is a few feet high. You will not be able to keep fish in it, only invertebrates, maybe a few shrimp or sea anemones. It is much harder to keep the water healthy in a small tank,and the appliances needed for running a salt water aquarium cost pretty much the same (if available) as appliances for a larger tank. I suggest you join a club of salt water aquarists who will be able to start you off perfectly. Your local fish/pet shop should be able to point you to a club.
Updated on September 24th, 2025
- Home & Habitat
Is my pet a turtle or tortoise? Where should it live: land or water?
What you have appears to be an aquatic/semi-aquatic species of turtle. Basic requirements include a tank of at least 10 gallons initially, a water heater, a water filter, a basking area out of the water, a heat lamp and a UVB light source.
Updated on September 24th, 2025
- Vet Q & A
Why are my fish dying with bleeding, white spots, and polluted water?
I'm sorry you are having difficulties with your aquarium. There are several issues that should be dealt with right now. They are water chemistry, aquarium size and choice/number of fish. Any new aquarium should be set up and, ideally, run empty for several weeks (usually 4-6 weeks). This is so beneficial bacteria have an opportunity to populate the substrate and filter. These bacteria are necessary to break down wastes that fish will produce. The technical phrase for this is "establishing the Nitrogen cycle". These bacteria will break down wastes into ammonia then nitrites then nitrates. Nitrates can then dissipate or be absorbed/used by live plants. In high enough concentrations, ammonia and nitrites are toxic and can kill fish. Cycling a tank with fish is possible but it increases the risk of loss. Water chemistry should be checked every few days using a liquid home test kit. A water sample can be submitted for testing , but is not as convenient as testing yourself. Most pet stores or fish stores will do this for free or for a small fee. Partial water changes, no more than 30%, can be done as needed to stabilize chemistry and maintain water quality. Choices for water conditioners include NovAqua, AmQuel Plus, Prime, StressZyme or StressCoat. Tank size is another concern. With most fish, the widely accepted "one inch of fish per gallon" will be sufficient. For koi and other carp species, including goldfish, the rule is not sufficient. At full size, goldfish need 20 gallons per fish with an additional 10 gallons for each additional fish. Koi do best in larger tanks, much larger...we're talking in the hundreds of gallons or small ponds. These species produce a larger than average bio-load (wastes) that can quickly affect water quality in a tank. To combat this, large water volumes and powerful filtration are required. Any filter should be rated for at least twice the tank volume. I'm not sure what size tank you have now, it may be fine if the fish are young and small, but they will quickly outgrow it. The last issue is choice of fish. Koi and goldfish are cold water fish. They do best in water between 65F and 72F. Most species of sharks do best in the high 70sF to low 80sF. Keeping fish in incorrect water temperatures will lead to stress and illness. This could be compounded by the water quality/chemistry issues you are having currently. Until the chemistry is stable and water quality is maintained, your fish will continue to become ill and possibly die. Any treatment will not be successful in this situation. Do not purchase or add any more fish until the tank has cycled. If you have additional questions, you can post them in the forum or request a consultation to discuss the case in greater depth.
Updated on September 24th, 2025
- Vet Q & A
Best lighting for red eared sliders: UVA, UVB, and heat explained?
A RES requires full spectrum lighting (UVA and UVB) and lighting that provides heat. The dry dock, or basking area, should be completely out of the water. Basking temps should range between 90F and 95F (32-35C). You should place the UVA/UVB bulb as close to the heat lamp as possible. It should be no more than 12" away from your RES and should not have a barrier between it and your turtle. Glass, acrylic and plastic block UVB while screens with grids under 1/2" can obstruct a good portion of UVB rays negating the health benefits. Lighting should be on for around 12 hours a day, depending on the time of year. Full UVA/UVB bulbs need replacing every 6 months. The simplest combination for adequate lighting is a UVA/UVB fluorescent bulb and an incandescent light bulb (for heat). Incandescent light bulbs are standard household lights easily purchased at stores such as Home Depot or Lowes. Make sure your RES cannot splash water on it or come into contact with it. You can also consider halogen lights and red heat bulbs for supplemental heat. You can buy the UVA/UVB bulbs at most pet stores. Search in the Reptile section. They can also be purchased online for around $30-$40. ReptiSun 10.0 (by ZooMed) or ReptiGlo lights are quality full spectrum bulbs.
Updated on September 24th, 2025
