You can use Excel, But as far as I know you would really need a controller to use software associated with Aquariums. Neptune has a free DL of the lite version of thiers. Maybge you can get it to work without a controller.
I'm not looking for software to actually control any thing on my aquariums. I'm just looking for a good software program to use as a log...something that will let me add several aquariums...something that maybe has some reference material. I just ran across this site and this looks like pretty cool software.
A program that tracks everything is a great idea. I'm a programmer by trade and I could write some code that all of us at reef frontiers could use. If everyone would help with data needed (ie coral & fish names for pick lists, pictures ect…) it would make a great project that would be custom for our needs. If anyone is interested is further discussion let me know what you think.
click my link below the purple picture that says "Visit Ben's aquarium log". It's free. I've only used it for about a month. Charlie recomended it to me, but I love it! Have fun.