New to Aquarium Photography

[zorro18]

Hi, I'm a complete newbie and armed with my canon 300D , i wanna start taking pics of my marine tank....
The problem is i dunno how to start, what i need, wat lens to use, wat speed, aperture etc....
I hv tried shooting at nite at 1/30 @ f5.6 without flash (dunno wat ISO speed) relying on the aquarium lightings and pics are not as good as some of the pics posted here.

They are only so-so but cud be better & sharper.....

Tips appreciated...

 

[freelancer]

F2 or faster glass? Aquariums are normally low light and flash is not effective or allowed in some places. Try shooting at ISO800 or even ISO1600 (can handle noise during post-processing). A cheap but excellent lens to start off would be the 50/1.8 in my opinion.