Do you think a 20 inch fish would live comfortably in a 20-gallon tank?
Not all fish are alike in their oxygen needs. Slender fish such as tetras or danios use less oxygen than full-bodied fish such as goldfish or oscars. The calculator reflects this by providing two extremes. For slender fish, we use the value of 12 square inches of surface per length-inch of fish (or 30 sq cm/1 cm of fish) For full-bodied fish, we use the value of 20 square inches per inch (50 sq cm/1 cm) of fish. Cold water tanks and marine tanks have higher surface requirements. Cold water fish need a minimum of 30 inches of surface area per inch of fish (76 sq cm/1cm); marine fish need a minimum of 48 inches of surface area per inch of fish (122 sq cm/1cm).
The surface area calculation is pretty simple as well although it’s not perfect either. Basically you multiply the length times the width of your tank. This gives you your tanks surface area. Under this rule your tank would house 1 inch of skinny fish for every 12 inches of surface area. Your tank would also house 1 inch of full bodied fish for every 20 inches of surface area.
How many gallons is my tank in canada 20inch long 10wide 12inch deep.
How many gallons does a 20 inch high and 20 inch wide tank hold
Catfish are also messy fish, and produce a lot of waste, your 10 inch long cat, lets err on the side of caution and calculate his bioload to 20 inches, that's 36 inches of fish in a 29 gallon tank, *heavilly* overstocked, if you want to keep both fish, it might be time to think about a bigger tank It's a good idea to have in mind what kind of freshwater aquarium fish you want to keep in your freshwater aquarium setup before you purchase an aquarium. Some fish only grow to be an inch or two, whereas other types of tropical fish can grow 12 or 13 inches or more in length! Knowing what kind of fish you want will help you decide the size of the tank they will need. If this is your first time with an aquarium, it may be a good idea to start with a 10 or 20 gallon aquarium setup for now and stock it with some smaller and hardier species.The “one inch of fish per gallon” rule was designed to help novice aquarium hobbyists avoid overstocking their tanks. When you start a new aquarium it takes time for the nitrogen cycle to become established and if you put too many fish in your tank at once, you could overload the tank and you could end up with a bacterial bloom that might kill your fish. To prevent this from happening, new aquarium hobbyists are encouraged to stock their tanks with no more than one inch of fish per gallon of tank capacity. For example, if you had a 20-gallon tank you would be advised not to stock it with fish that add up to a total of more than 20 inches in length. This rule is great to use for a guideline, but there are many other factors to consider when stocking your tank.I think the rule 1 inch of fish per inch is a bunch of crud. You should just have each fish get 1 gallon of water it’s simple and it works so a 20 gallon fish tank could hold 15 medium fish because of decorations and gravel.