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Step 1
Research the various breeds. A smaller breed, like a catshark is better than a large breed like a nurse shark in the limited space of home aquariums. Before you buy, you need to be aware of what is "normal" for the breed you are considering. You cannot determine that you are purchasing a healthy specimen if you don't know what healthy looks like. Examine photos and videos and read, read, read.
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Step 2
Join an aquarium club. Chatting online with like-minded aquarium aficionados will add to your insight and open up doors of possibilities for purchases, trades and the caveats of the hobby.
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Step 3
Visit a breeder. While where you live may limit your choices, seeing the condition of the fish and its habitat is an important pre-purchase step. Plan to spend a half-hour in the store on your first visit, without the intent to purchase that day.
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Step 4
Avoid sharks with spots or blemishes on its body.
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Step 5
Look into its eyes to assure they are clean, clear and aware. Their pupils should constrict in bright light.
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Step 6
Check their gills to assess that their rate of respiration is measured and consistent.
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Step 7
Look for activity level consistent with the shark breed.
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Step 8
Set up the aquarium before you bring home your shark.
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Step 9
Buy from a website if your location makes an onsite visit too difficult. The websites below are two options for shark purchase.
