looking for new lens..maybe a new camra

[reefmate75]

where can i go to buy close up lens for my powershot570is...ive been looking online for a bit now and i cant seen to find anywhere...do they sell lenses for canon camras??
ive seen alot of the pics online and i cant seem to get mine anywhere that clear. mine come out fuzzy can blurry, i cant zoom in much at all or it will be blurry

any info would help alot
heres a example:

 

[05xrunner]

they dont really sell lens for a P&S because they are fixed cameras.
You can get stuff they call lenses but they are more like just a

[hr]
(it blocked the word scr ew) on piece that acts like a magnifying glass basically

 

[nano reefer]

yeah, the problem with your pictures is that there is a lot of "noise". Noise is where a dark area tends to be grainy, and when you are going for a fish tank without white lights on youn get a lot of noise. Either take pisc with lights on, find a nwe camera setting, or get a new camera. You dont have to go DSLR, but a good quality digital camera will work. Unless you want to go all out with macroing and stuff.