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Related Articles & Questions
- Care Sheets
Your Ultimate Tang & Surgeonfish Guide: Tank, Food & Habitat
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Ultimate Reef-Safe Wrasse Care: Tank Setup, Food & Compatibility
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- Vet Q & A
First fish tank: What Tetras and supplies for my 12-inch tank?
Before you buy any fish, you will need to set up the tank. A basic set up includes: a tank, filter, hood/light, heater, gravel and some decor. The tank should run without fish for at least 4 to 6 weeks. This gives it time to cycle. The Nitrogen Cycle is critical to the health of the tank and any fish you will be keeping. During this time, beneficial bacterial will populate the filter and substrate (gravel). These bacteria will be responsible for breaking down fish wastes and other wastes (uneaten food, dead plants, etc.). You will need a home test kit to monitor water chemistry (ammonia, nitrites, nitrates, pH) or you will have to submit water samples for testing. Most pet stores will do this for free or for a small fee. At first, you will see high levels of ammonia and nitrites. Over time, as bacteria grow, these levels will drop. When ammonia and nitrites are at 0 ppm and nitrates are below 20 ppm, you can consider adding fish. Regular (every 1 or 2 weeks) partial water changes as well as filter changes will be needed to maintain stable water chemistry and adequate water quality. The size of your tank will determine what fish and how many you will be able to keep. Most Tetras do best in groups, so a 12 inch tank may not be large enough. There are several article in the Petco Pet Education Center, formerly Petcoach Library that will provide more detailed information. Click on "Educational Center" at the top of the page, then scroll down to "Articles" and click. Use the Search Bar to find articles regarding aquarium set up and fish keeping.
Updated on September 24th, 2025
- Vet Q & A
My fish died. How do I make my aquarium water safe for new fish?
I would recommend to have the water completely changed. New water should be ideally submitted 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 as well. Oxygen concentration and quality of the filters should be determined as well. 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.
Updated on September 24th, 2025
- Vet Q & A
How much sea salt to mix for my saltwater aquarium fish?
If your are using a product such as Instant Ocean ( www.instantocean.com ) or Reef Crystals ( http://www.instantocean.com/Products/Sea-Salt-Mixes/reef-crystals-sea-salt.aspx ), then directions will be on the container. Other products may also include instructions. The amount of sea salt will depend on the specific gravity you desire. Ocean water, or water used in marine tanks, has a specific gravity of 1.025, so you will need to dissolve enough salt into a quantity of water to reach that level. You will need to allow for 24 hours to make sure the salt has completely dissolved. If you want a step by step guide, click the link below. http://www.saltwatersmarts.com/guide-to-mixing-saltwater-517/
Updated on September 24th, 2025
- Vet Q & A
My fish is rubbing and acting strange. Is it parasites? What's safe for my tank?
It certainly sounds like something is irritating this fish. Most often it is caused by parasites, usually ich. With ich you sometimes see salt like spots on the fins, you also may see a dusting in the dark if you shine a light. Other things that could cause itching would be irritants such as high ammonia levels. Personally I do not like adding chemicals to the water, especially not with other species such as snails and shrimp. To treat ich you can simply increase the water temperature and you can bathe the individual in salty water.
Updated on September 24th, 2025
- Vet Q & A
What's the right amount of aquarium salt to treat ich in my fish?
If your fish are salt tolerant, use one teaspoon of plain aquarium salt per gallon of water to treat Ich. Dissolve it in a cup of tank water then pour it slowly into the tank. Increase water temperature to about 85-86 F and hold for 10 days. Vacuum the substrate once your fish lose the "dots".
Updated on September 24th, 2025
