← Marine & reef

Reef fish

Species profiles of fish for the reef aquarium.

Royal gramma, purple and yellow, between corals

Combining reef fish: which fish go together?

Reef safe or not, peaceful or territorial, and in what order do you add them? How to put together a fish population that lives calmly alongside your corals and invertebrates.

Yellow tang with white spots of marine ich

Marine ich and velvet in marine fish

Cryptocaryon and Amyloodinium are the most feared parasites in saltwater. How to recognise them, how their life cycle works, and how to tackle them without harming your corals.