I don't know much about that camera.
Does it have an eyepiece/viewfinder or just an LCD?
When you take a picture do you hear a clicky noise?
A lot of cameras have a speaker that plays a simulated SLR mirror flap noise, but you can typically tell the difference.
Eitherway, it should work more than well enough for Aquarium Photography except you won't ever be able to change lenses - which is good if you had no intention of buying any.
It has both an eyepiece and an lcd. There is a clicking sound but it is definitely simulated.