Seeing pictures of a healthy marine fish only or reef aquarium in books or on the internet, or even better, in reality at a public aquarium will cause just about anyone to appreciate the beauty and general fascination of them. Some people will wonder if they could have one, and the thought will shortly disappear. Others, however, will not forget so easily and will want to delve further into the possibility of their own aquarium.
If the potential aquarist knows a friend who already has a healthy marine aquarium, then there is a source of advice available already. The friend will already have been through all the research and considerations. Often, however, the potential aquarist will want to find out for him/herself. That is very good, as the aquarium system will be understood thoroughly. Then there may not be a known marine aquarist available, so what is the first move? Dashing to the local shop and buying an aquarium and a few bits of equipment that the shop says is needed is totally incorrect.
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