Because reef jars (pico reefs) are the smallest saltwater setups, usually 2 gallons or less, their size makes them space-friendly and budget-conscious, but don’t be fooled by their small size.
Reef jars come with quirks and need some planning to get right.
The guides below have everything you need to know, from picking the right jar to maintaining stable water parameters. Search or click an article below to get started!
