
Rainbowfish Species Starter Guide
Rainbowfish shine in schools — juveniles look plain until maturity reveals iridescent sides worth the wait.
Read more →Guides
This Fish Species hub on Fishy Friends gathers practical fish species guidance for keepers who want clear answers before they change water, livestock, or gear.
Use these articles to match species to tank size, plan filtration and feeding, and troubleshoot water chemistry without guessing. Each guide is written for home aquariums and links to related reading when you need more depth on fish species.
Start with the basics — stable parameters, quarantine habits, and a feeding schedule that matches the livestock — then browse the profiles and how-tos below. When you are ready to branch out, jump into neighbouring topics so your fish species plan stays consistent across the whole tank.
Whether you are stocking a first community tank or refining an established scape, bookmark this page and return as questions come up. Healthy aquariums are built from small, repeatable routines more than one-time upgrades, and fish species success follows the same pattern.
Explore next: freshwater fish, saltwater fish, coldwater fish, all guides.
Fishy Friends publishes species care sheets, plant and invertebrate notes, aquascaping ideas, and water-care explainers so fish species advice stays easy to find. Read one guide thoroughly, apply it slowly, and use the linked hubs above when you want a second angle on the same problem.
Before you buy livestock or rethink filtration, skim two or three fish species articles here and write down target numbers for temperature, hardness, and feeding. That short checklist prevents the most common resets and keeps your aquarium closer to the calm, healthy display you are aiming for.
Come back after water changes or new additions: compare what you see in the tank with the fish species checklists below, then follow one recommended next step instead of changing everything at once. Steady improvements compound, and Fishy Friends is built to support that pace.
Jump into popular groups — tetras, corys, danios, and more.

Rainbowfish shine in schools — juveniles look plain until maturity reveals iridescent sides worth the wait.
Read more →
Labyrinth fish breathe air at the surface — bettas and gouramis bring personality, color, and specific territorial rules.
Read more →
Catfish aren't all bottom-dwelling algae machines — the family spans tiny Corydoras schools to giant red-tailed predators.
Read more →
No fish solves algae alone — algae eaters supplement good husbandry; some 'algae' fish ignore algae entirely as adults.
Read more →
Nano tanks need nano fish — species under two inches that thrive in planted small volumes without crowding.
Read more →
Cichlids reward personality and color — pick dwarf or gentle species first, not oscars in a twenty gallon.
Read more →
Livebearers give birth to free-swimming fry — prolific, colourful, and perfect for learning fish breeding basics.
Read more →
A practical care guide to keeping Pink Skunk Clownfish (Amphiprion perideraion) healthy in the home aquarium.
Read more →
A practical care guide to keeping Purple Firefish (Nemateleotris decora) healthy in the home aquarium.
Read more →
A practical care guide to keeping Raccoon Butterflyfish (Chaetodon lunula) healthy in the home aquarium.
Read more →
A practical care guide to keeping Schooling Bannerfish (Heniochus acuminatus) healthy in the home aquarium.
Read more →
A practical care guide to keeping Foxface Rabbitfish (Siganus vulpinus) healthy in the home aquarium.
Read more →
A practical care guide to keeping Purple Tang (Zebrasoma xanthurum) healthy in the home aquarium.
Read more →
A practical care guide to keeping Scopas Tang (Zebrasoma scopas) healthy in the home aquarium.
Read more →
A practical care guide to keeping Lyretail Anthias (Pseudanthias squamipinnis) healthy in the home aquarium.
Read more →
A practical care guide to keeping Neon Goby (Elacatinus oceanops) healthy in the home aquarium.
Read more →
A practical care guide to keeping Yellow Clown Goby (Gobiodon okinawae) healthy in the home aquarium.
Read more →
A practical care guide to keeping Turquoise Rainbowfish (Melanotaenia lacustris) healthy in the home aquarium.
Read more →
A practical care guide to keeping Forktail Blue-eye (Pseudomugil furcatus) healthy in the home aquarium.
Read more →
A practical care guide to keeping American Flagfish (Jordanella floridae) healthy in the home aquarium.
Read more →
A practical care guide to keeping Zebra Pleco (Hypancistrus zebra) healthy in the home aquarium.
Read more →
A practical care guide to keeping Pictus Catfish (Pimelodus pictus) healthy in the home aquarium.
Read more →
A practical care guide to keeping Upside-down Catfish (Synodontis nigriventris) healthy in the home aquarium.
Read more →
A practical care guide to keeping Glass Catfish (Kryptopterus vitreolus) healthy in the home aquarium.
Read more →