Whipped up another product design based on an idea lovingly lifted from my fiance's wonderful brain . We tag team like that.

There's 8 color variations available, and you can get them on all kinds of stuff!
The collection is here: https://www.redbubble.com/people/guttergoo/shop?artistUserName=guttergoo&asc=u&collections=2966780&iaCode=all-departments&sortOrder=relevant and you can view them as other products by clicking each listing. Feel free to share with your fish-having-or-enjoying-friends!