How does My Tank compare species?+
Add species from the search results, then open My Tank to compare their recorded care needs side by side. Shared water ranges show the overlap of recorded values. The shared minimum tank size is the largest individual minimum in your selection, not a recommended volume for the combined stocking. Water-flow preferences are compared where recorded.
What do warnings and missing data mean in My Tank?+
Warnings identify conflicting recorded ranges or flow preferences and flag semi-aggressive or aggressive species. Missing values are not assumed to match: notes below the table identify incomplete comparisons where overlap is unconfirmed. Even matching parameters do not establish compatibility; review behavior, group sizes, tank dimensions, and the original care sources.
Is My Tank saved to an account?+
No. Your selected species are saved in this browser using local storage, without an account or cross-device syncing. Clearing browser storage removes the saved selection. Saved care records are snapshots and do not automatically update when the catalog changes.
What is Good Fishkeeping?+
Good Fishkeeping is a searchable freshwater aquarium field guide for fish, plants, and invertebrates. Each species profile brings together its identity, natural habitat, listed care parameters, care notes, photographs, and original sources.
How do I find species for my aquarium?+
Search by common or scientific name, or use Filters to narrow the catalog by tank size, temperature, pH, temperament, and other characteristics. A search match is a starting point: review the full care profile and its sources before choosing inhabitants.
Where does the care information come from?+
Profiles are compiled from public aquarium care sources. Species pages link to those sources and identify photo credits where available. Recommendations can differ between sources; compiled ranges are references rather than a guarantee of suitability for every aquarium.
Does matching a filter mean a species is suitable for my tank?+
No. Some profiles have missing parameters, and a search may include those records. Tank dimensions, group size, existing inhabitants, and other care needs also matter. Check the full profile and its source material before making a stocking decision.