How Many Fish Can I Put in the Tank?

So, you probably have some issues calculating how to populate the tank if you are asking “how many fish can I put in the tank. “ You must think that in a natural environment fish do not bump into each other at every single move they make. They must have enough space around them to swim, to play, to hide, to eat, to breathe. Overcrowding leads to stress and stress to diseases. An aquarium that is too small for the amount of fish inside is not going to be a very healthy environment as the oxygen is not going to be enough. Also, the fish are going to produce a lot of waste that is going to clog the filters.

How many fish can I put in the tank? Here you can find the answer:

- Area of the Tank (Length x Width)   20 x 10=200; 16 inches Freshwater fish; 4 inches marine fish;

- Area of the Tank (Length x Width)   24 x 12= 288; 24 inches Freshwater fish; 6 inches marine fish;

- Area of the Tank (Length x Width)   30 x 12=360; 30 inches Freshwater fish; 7 inches marine fish;

- Area of the Tank (Length x Width)   36 x 12=432; 36 inches Freshwater fish; 9 inches marine fish;

- Area of the Tank (Length x Width) 48 x 12=576; 48 inches Freshwater fish; 12 inches marine fish;

-  Area of the Tank (Length x Width)   48 x 18=864; 72 inches Freshwater fish; 18 inches marine fish;

- Area of the Tank (Length x Width) 72 x 18=1296; 108 inches Freshwater fish; 27 inches marine fish;

-  Area of the Tank (Length x Width)   72 x 24=1728; 144 inches Freshwater fish; 36 inches marine fish.

The dimensions (length, width, fish’s length) are measured in inches. The fish’s length is measured from snout till the point where tail fin begins. Another thing to mention is that in the list we made before, the fish length refers to the total length of all the fish together.

The fish you are intending to buy may be spawn and therefore you must take into account the fact that it is going to grow, getting the dimensions of adult fish, which are probably longer.

As a conclusion, we may say that you must calculate exactly the dimension of the tank, approximate the number of adult fish that can live comfortable in the tank and then decide which the appropriate number of fish to purchase is.