Glasswater Guild creates original STL files for fish keepers, aquascapers, and makers. Whether you're upgrading your tank, organizing your workspace, or printing something just because it's awesome, you'll find designs built to print well and last. New creations are added regularly as inspiration strikes... usually somewhere between a water change and buying more plants than any sane person needs.
I have a few non fish related items up now. I'm finalizing some designs with my tank to have on here soon!