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Small Marine Fish are favorites with marine aquarists and includes a wide range of species.
Updated on October 23rd, 2025
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
Learn how to care for freshwater livebearers, recommended diet & aquarium setup. Find the right food, supplies & equipment at your neighborhood Petco.
Updated on October 23rd, 2025
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 December 21st, 2025
Learn how to care for brackish water fish, recommended diet & aquarium setup. Find the right food, supplies & equipment at your neighborhood Petco.
Updated on October 23rd, 2025
Check water temperature and chemistry. Bettas do best between 78 F and 80 F. Unless the room is very warm, a small heater is typically required. Without a filter, frequent water changes are necessary to prevent elevated levels of ammonia, nitrites and nitrates. All can be toxic to fish at high levels. Use only aged or conditioned water that is temperature matched to prevent further stress or shock. Plain aquarium salt (NOT table salt) can be used as a general tonic, to reduce stress, to treat minor infection and to aid in recovery. Dissolve 1 teaspoon of salt in a cup of tank water and gently pour it into the tank. Perform daily water changes, using aquarium salt for 10-14 days. If there is no improvement, consider a broad spectrum antibiotic. You can find one in the aquarium section of the local pet or fish store. Follow label directions carefully.
Updated on September 24th, 2025
Check the water temperature. Bettas do best between 78F and 80F. Low temps can affect activity in fish. You may need a small submersible heater to maintain water temperature. Next, check water chemistry. You can do this with a home test kit or by submitting a water sample for testing. Most pet stores will do this for free or for a small fee. Confirm an absence (0ppm) of ammonia and nitrites with a nitrate level of 40ppm or less. Partial water changes may be indicated to stabilize chemistry and maintain water quality. Use only aged or conditioned water that is temperature matched to prevent stress or shock.
Updated on September 24th, 2025
These signs are unfortunately quite generic even though concerning. A radical but logic approach is essential in these cases. Begin by submitting a water sample for quality testing. Most pet stores will do this for free or a nominal fee. Clinical examination should always include a water quality check, even if you have done so already. Water testing should be performed with a quality test kit, measuring NH4, NO2 and NO3. High ammonia levels, PH imbalances may be responsible for these signs. Oxygen concentration and quality of the filters should be determined as well. If water quality is good and there are no major imbalances, your fish should get examined to look for any sign of bacterial/fungal infection and eventually water should be treated. Hope this answer was helpful, but please do not hesitate to contact us again on the forum or by requesting a consultation if you have any more questions or to discuss it any further. Please find the time to give us a feedback about the consulta
Updated on September 24th, 2025
Check the water chemistry and temperature. Use a home test kit or submit a water sample for testing. Most pet stores will do this for free or for a small fee. Aim for 0 ppm ammonia and nitrites with nitrates at 20 ppm or less. Perform partial water changes, no more than 30% total volume at a time, to stabilize chemistry and improve water quality. Use only aged or conditioned water that is temperature matched to prevent stress or shock. Bettas are tropical fish and do best between 78 F and 80 F. You may need a small, submersible water heater to maintain temperature. Feed either the pellets or the bloodworms at one meal. Offering both is too much and he likely won't eat it all. Any uneaten food will rot in the tank and foul the water.
Updated on September 24th, 2025
The stress of the move may be the cause. Of course illness, injury or parasites are also possibilities. Confirm proper water temp, 78-80 F is best. Check chemistry as well. Ammonia or nitrites are toxic. Set up filtration as soon as you can or perform partial water changes using aged or conditioned water that is temperature matched. Drop the water level to make it easier for her to surface until she acclimates and is more active.
Updated on September 24th, 2025