Observed arrival · 2026-09-27
BlueBook: an aquarium guide for choosing your next tankmate
BlueBook describes an iPhone aquarium guide for finding fish, corals, invertebrates, and plants by care difficulty, color, and compatibility.
- For
- Aquarium keepers choosing compatible fish and other species
- Worth noticing
- Filters and tags cover coral compatibility, disease susceptibility, and whether Japanese keeping regulations apply.
Field notes
The page describes separate filters for care difficulty, color, and coral compatibility, then adds tags for disease susceptibility and Japanese keeping regulations. It also says species detail screens include photos and videos, while favorites let users compare possible tank combinations. The homepage claims support for 11 languages and more than 2,600 species; its App Store status is inconsistent, so access to the app cannot be confirmed from this page alone.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
One card from the complete issue