How best to take a closer look???

[tmbar19]

I love sitting watching my tank for hours. I want something to magnify small objects in the tank so that I can see them more clearly. I haven't heard any mention of a "spy glass" for looking at the tiniest things crawling around and growing in the cracks. What's available??? I tried 4X binoculars - nada. What's best, and what price am I looking at (sorry for the bad pun)??? Where do I find such an item? Thanks, Marianne