THE FRESHWATER FIELD GUIDE
Get to know
their little world.
Discover the fish, plants, and invertebrates that bring an aquarium to life. Explore where they come from, what they need, and how to care for them.
Curiosity is a good place to start.Four familiar aquarium favorites
Explore all species ↗
Fish · beginner
Guppy
Poecilia reticulata
- Size
- 7.62 cm
- Temp
- 22.0–28.0°C
- pH
- 6.5–8.0
- From
- Tropical regions
Fish · beginner
Neon tetra
Paracheirodon innesi
- Size
- 5.00 cm
- Temp
- 20.0–28.0°C
- pH
- 5.0–7.5
- From
- Amazon Basin
Fish · beginner
Goldfish
Carassius auratus
- Size
- 32.00 cm
- Temp
- 1.0–35.0°C
- pH
- 6.0–8.4
- From
- East Asia
Fish · beginner
Zebra danio
Danio rerio
- Size
- 7.00 cm
- Temp
- 18.0–28.0°C
- pH
- 6.5–8.0
- From
- South Asia
FRESHWATER AQUARIUM CARE GUIDES
A clearer starting point
for good fishkeeping.
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.
FROM SPECIES KNOWLEDGE TO TANK CONTEXT
Know their needs.
Get to know your water.
Chomper Aquatics is developing continuous freshwater aquarium monitoring to help you understand how tank conditions change over time.