Fish
The aquarium becomes meditation and living microcosm.
Running a freshwater aquarium means managing an ecosystem: water, plants, bacteria, biotopes. From the solitary betta to schools of neon tetras, territorial cichlids to goldfish that can exceed 30 cm — each species has its own parameters. First rule: never use a bowl aquarium, never below 60L to start.
Overview
0.0–30 kg
Weight range
min ↔ max documented
3–8 ans
Life expectancy
all ages
Medium
Majority size
863 breeds of 872
100%
Suited for apartments
referenced breeds
Distribution by size
Ideal profile
What should good food contain for fish ?
Nutritional ranges validated by our team. These are the ranges our PawScore considers ideal.
Fish flakes
- Protein35–50%
- Fat5–12%
- Fiber1–4%
- Calories300–420kcal
Values outside the range are not dangerous, but slightly reduce the PawScore according to our methodology.
By build
Choose by size
The #1 criterion when choosing a breed — space needed, transport, budget.
Discover
The essentials
A selection to start your exploration of fish.
Lifestyle
Minimum 60L aquarium to start (100L+ recommended), filtration 4-6× the volume/hour, stable heating, lighting 8 hours/day, live plants for oxygenation and well-being. Nitrogen cycle is essential BEFORE introducing fish: 4 to 6 weeks of cycling with regular testing (NO2, NO3, pH).
Nutrition
Highly specific to each species. Quality pellets, flakes, live/frozen (brine shrimp, bloodworms, daphnia). Feed 1-2× per day, amount = consumed in 2 minutes. One fasting day/week recommended for goldfish.
Read more (19 mots)Show less▾
Adapt to surface feeders (bettas), mid-water feeders (neon tetras), bottom feeders (corydoras).
Care
Partial water change weekly (10-25%), mechanical filter cleaning every 1-2 months (in aquarium water, never tap water — destroys bacteria), test parameters monthly, daily observation (fins, behavior, appetite). Live plants = stable parameters.
What if your next companion was already waiting for you? Many shelter fish are of an identifiable breed — every adoption is a new life beginning. Meeting in a shelter is often the love of a lifetime.
Alert
To avoid for fish
Our database lists toxic ingredients and problematic additives by species.
- Pacific tunaModerate
- Copper sulphateModerate
- red meatModerate
- breadLow
Rankings
Find the right fish
Thematic selections to guide your choice based on your lifestyle.
The best animals for small budgets
Companions with reasonable maintenance costs — from hamster to dwarf rabbit.
See the rankingThe best animals for children
Gentle, sturdy, and easy to handle companions.
See the rankingVery small fish breeds
5 breeds ranked by size
See the rankingSmall fish breeds
4 breeds ranked by size
See the rankingFish species with the longest lifespans
Maximum documented lifespan — 8 years for the Betta
See the rankingFish species with the lowest energy requirements
9 low-energy breeds
See the rankingOur catalog fish
Daily update49
Referenced products
65/100
Average PawScore
0%
Rated excellent
0 produits
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Organic products
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Distribution by category
Complete catalog
All breeds of fish
872 pages · filter by size, energy, lifestyle.
Next step
The right meal for your fish.
SokoScan calculates a personalized PawScore based on breed, age and sensitivities. Free, instant.
