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Wondering why you may need CO2 in your fish aquarium? Learn the basics from a Petco aquatics specialist.
Updated on October 29th, 2025
Learn how to care for a Koi, recommended diet and aquarium setup. Find Koi for sale, supplies and equipment at your neighborhood Petco.
Updated on October 29th, 2025

When creating an outdoor fish pond you need the right environment, fish and maintenance to keep your water feature looking its best.
Updated on October 29th, 2025
Learn how to pick the right aquarium plants, substrate, lighting, and fertilizers to ensure that your aquarium plants thrive and stay healthy.
Updated on October 29th, 2025
Learn how to safely handle your aquatic life to avoid toxin & bacterial exposure. Find aquatic life care supplies at your neighborhood Petco pet care center.
Updated on October 29th, 2025
Hi there! The fish will probably be ok for a day, but if the power doesn't come back on, you should consider purchasing a battery-operated aerator. I highly recommend that all fish owners keep one of these on-hand for situations like this. I don't know if this person ships to Turkey, but a similar product would be fine, too: https://www.ebay.com/p/Rapala-Battery-Powered-Aerator-Model-Raertr-c/1000293148?iid=371986500727 Most fish will come to the surface for air, but they really do need dissolved oxygen to thrive. Good luck!
Updated on August 12th, 2025
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
Updated on August 12th, 2025
The impeller, the part that moves the water, may be bad or there may be a clog or debris in the pump. If you can get to it, check it for wear or damage and replace it or clear any debris or blockages. If you can't get to it, you may need to replace the entire unit.
Updated on August 12th, 2025
Begin by submitting a water sample for quality testing. Most pet stores will do this for free or a nominal fee. High ammonia levels, PH imbalances may be responsible for that. Oxygen concentration and quality of the filters should be determined as well. Lack of oxygenation could be the cause of it. If water quality is good and there are no major imbalances, Bubbles should examined to look for any sign of bacterial/fungal infection and eventually water should be treated. Please do not hesitate to contact us again on the forum or by requesting a consultation (where you can post pictures ) if you have any more questions or to discuss it any further.
Updated on August 12th, 2025
The quick start liquid will add nitrifying bacteria but will not eliminate ammonia or nitrites. Both are harmful and can kill fish in high enough concentrations. You can use a home test kit to test the water or you can submit a sample for testing. Most pet stores or aquarists will do this for free or for a nominal fee. There are chemical additives you can use to decrease levels. When adding water, use treated water or aged water. Ideally, the tank should be left empty for about 4 weeks to properly establish the nitrogen cycle before adding fish. At this point, you may lose the second fish regardless of treatment. Test the water, make adjustments, let the tank cycle and start fresh. Adding an airstone can increase oxygen levels.
Updated on August 12th, 2025