When choosing a fish for the aquariums there are some few other things that you need to consider.
- First and foremost you have to identify the type of aquarium you are going to make; whether it is marine tank or freshwater water tank; whether it is a cichlid tank or a planted tank.
- You have to consider the right size of the fish for the tank. 1 inch of fish per gallon is the general rule but bear in mind that this is only applicable in fishes like neon tetra and other small fishes. As for massive bodied fishes, they will require more than 1 inch per gallon rule.
- Choose a fish that is active and always go in front of the glass when they see people. Do not choose a fish that only stays in one corner and barely swim. It is possible that it is already sick and dying.
- Examine the body of the fish before buying it. Some fish may have crooked backbone, ick and other illness. Avoid taking the ones with white spots.
- Avoid choosing a fish that just arrived from shipment. Those fishes have been stressed out and they have a very low survival rate. Choose fishes that have been with the local fish shop for at least 2 or 3 days. If they survived this long in the local fish shop then there is a very high probability that it will stay alive when you put it in your aquarium.
Picture below is an example of a healthy neon tetra
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