Thanks .... but it's really good for other stuff besides bugs . Used to do miniature orchids , small bits of circuitry , all sorts of stuff . But for fish , its' big advantage , for me at least , is the extra reach so I don''t need to get right up on the tank .
Not saying it can''t do alot, just saying the reach comes in really handy with bugs since they'll scatter if you get too close. In an aquarium the fish are confined so its' not as important. They're also accustomed to having people near the tank.
It really depends on budget and what the OP wants to shoot. Also the size of the 60mm is more conducive to walking around with.