fish tank 3d hd

I got this one as free to try and soon brought full version

http://www.dreamaquarium.com/

Dreamaquarium is the best out there...IMO

By far the most realistic,and created by a special effects artist.

Or just use DeskScapes with an aquarium .dream.  

https://www.stardock.com/products/deskscapes/

MarineAquarium has really nice saltwater fish, excellent quality imaging:

http://www.serenescreen.com/

(Somebody needs to build him a new website, you'd never know how nice the program is looking at the site .)  One word of warning though, historically it hasn't been updated very often - say every few or several years.  It's best if you ignore what he says he's going to do and just consider it to be "as is" to avoid frustration.  It has a handicapped free trial download.  Nice fishtank.

Amusing sidenote -

I'm looking at DreamAquarium's screenshot (looks pretty nice) and I'm thinking to myself:

"Ya, only on a computer could you get away with putting Africans in with Discus in with South Americans in with Barbs."   Comes under the heading of "Don't try this at home" with your real aquarium. 

@ all   thanks for the safe links.... i will try them....  been modding oblivion and my brain is turning to mush........ "nice fishy..."  need a real rfelaxing break....

thanks!

Awesome screensaver trial. I think I will pick this up full. Tanks a lot 

you may checkout these :

Aquarium

Aquarium II

Coral Reef Aquarium

Reminds me that the first really cool screen saver (on both Mac and Windows) was the Aquarium!

@dr guy  yes, i had forgotten... good memories, yes.

@amitsaran  will chek them out.  i love the pics of coral reefs I have seen.. thanks for tip!