Petco Freshwater Fish Danios & Minnows | Petco

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Food & Nutrition
i have a question, we recently got glofish as a gift to my mother. I bought the water conditioner, food, plants and a volcano to decorate the tank, its a 5 gallon tank so they would have alot of room to swim. But all 5 fish, just stay at the bottom
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 September 24th, 2025
Health & Wellbeing
I have a freshwater fish in my aquarium that I cannot identify. It resembles a Mosquito fish but is lighter in color, thinner, swims differently, and has what appear to be sparkles on its sides. I caught it with a net in a school of mosquito fish but
Without an image, it will be difficult to definitively identify the fish in question. It may be a wild guppy. You can request a consultation which will allow you to share images. It is not recommended to add wild caught fish to an existing aquarium without an acceptable quarantine period.
Updated on September 24th, 2025
Health & Wellbeing
I have a 65 litre aquarium tank with 8 small tiger barbs fish ,6 Red eye tetra fish, 2 big golden molly, 2 rainbow sharks.........so can I add Discus Fish with these tank mates ? If yes ...if no ....so which tank mates is suitable for discus fish ? I
Thanks for your questions about your tank. You have a number of fish in your tank already - a general rule of thumb is 2.5 square centimeters of fish per 3.8 liters. Depending on how large your fish are, you may be close to the carrying capacity of your tank, and you will also need to plan on how the fish in your tank will grow over time (mostly the rainbow sharks). If you are looking for tank mates for discus, it is best to look for fish that are housed in the same temperature zone, and occupy different areas in the water column than they do. Examples would be bottom feeders like cory catfish, those that live on the sides and bottom such as plecos, and those that are in the middle of the water column like some species of tetras. For the question about vacation - I would not recommend leaving your tank for that long without someone checking on it regularly. Power outages can be detrimental for tanks, and water changes or additions would likely be required. Also, automatic feeders als
Updated on September 24th, 2025
Health & Wellbeing
I have 3 plattys 2 mollys 3 neon tetras and 2 catfish. I feed them worms and flakes once a day ( night time) and do a water change once a month. Is this good?
It depends on how big the tank is as well as the type of filter in use. Smaller tanks and more heavily stocked tanks will require more frequent water changes, about 20% every week or two. Check the chemistry (ammonia, nitrites, nitrates, pH) regularly. This will give you a better idea of when to perform tank maintenance. Tetras and platys are schooling fish and ideally, do better in groups of at least 5 or six.
Updated on September 24th, 2025
Health & Wellbeing
I got some new fish yesterday but I am not sure what type they are as they were s gift. They are black and a bit small. I want to know what type of fish they are and what they would need. Can you please help me with what type pf fish they are and wha
As for what kind of tank you will need: Basically a square fish tank, do not get a bowl. You will likely need a heater and an air pump, and a thermometer, It is easiest to by a complete kit at a pet shop. As for size of tank: The bigger is always the better....however a minimum size will be determined by the type of fish and their average size they will grow into, So once we know what type of fish you have and how many, we can tell you how big your tank needs to be and what type of "furniture" (rocks, plants, gravel) you will need.
Updated on September 24th, 2025