About Tank & Terrarium
Practical care guides for freshwater and saltwater fish, cichlids, koi, reef tanks and reptiles such as bearded dragons.
Who this site is for
Aquarium and reptile keepers who want clear answers on tank size, diet, compatibility and health, from first tank to reef.
How the guides are written
- Answer first. Each guide leads with the direct answer, then explains the why and the how.
- Practical numbers. Concrete values you can use, with ranges rather than false precision.
- Connected, not repeated. Short, focused articles link to the in-depth guide for their topic, so you can go as deep as you need.
- Dated. Every article shows when it was published.
Please note
These guides are general information and are not a substitute for care from a vet who treats exotic pets or fish. If an animal is unwell or has been exposed to something harmful, contact a qualified vet promptly.