Coldwater Freshwater Saltwater Tetras Corydoras Danios Barbs Gouramis Cichlids Rasboras Loaches Catfish Livebearers Killifish Angelfish Tangs Clownfish Wrasses

Plants Invertebrates

Aquascaping Equipment & Maintenance Feeding & Nutrition Water Chemistry Fish Health General Guides

Search

Search

Coldwater Freshwater Saltwater Tetras Corydoras Danios Barbs Gouramis Cichlids Rasboras Loaches Catfish Livebearers Killifish Angelfish Tangs Clownfish Wrasses

Plants Invertebrates

Aquascaping Equipment & Maintenance Feeding & Nutrition Water Chemistry Fish Health General Guides

Guides

Flashing

1 article · All guides

orange and white koi fish

Fish Flashing Against Objects: Common Causes

Learn why fish rub against decor and what evidence to gather before choosing treatment.

Concept Aquariums

Dive deeper

Find the right fish, plant, or care guide for your tank.

Species profiles, aquascaping ideas, and water chemistry written for hobbyists who want clear, practical answers.

Browse fish species All guides

Exploring the Beauty Below the Surface

Practical aquarium guides covering freshwater, saltwater, plants, invertebrates, and the water care that keeps tanks thriving.

502guides & species profiles

Fish & livestock

All fish species Freshwater Saltwater Coldwater Invertebrates

Care & setup

Aquascaping Aquarium plants Feeding & nutrition Water chemistry Fish health Equipment & maintenance General guides

Popular paths

Jump into the most-loved topics.

Fish species Freshwater Saltwater Plants Aquascaping Water chemistry

Home Blog Privacy policy

© 2026 Fishy Friends. All rights reserved.

Design by Onealsweb · Images used with permission and credited where needed