Algae ID

Guides and further reading

Other people's work that I think is worth your time. I do not necessarily agree with every point in them, and they do not necessarily agree with me, so read them all with a critical eye.

The Dinoflagellate Guide

Dinoflagellate Guide (Google Doc, about 6,000 words; not written by me)

A practical, hobbyist-written guide for anyone with a dino bloom that normal algae-control methods have not fixed. It covers the tank conditions that let a bloom start, the main dino types with photos and quick-reference stats, a step-by-step approach to cleanup (toxins, cell numbers, nutrients, biodiversity, mucus), what to avoid, and how to prevent a repeat.

Things I particularly like about it:

Some of its advice differs from mine, most notably on nutrients, peroxide, and blackouts. Neither of us has controlled experiments behind it, so use your judgment, and tell me what works for you.

A practical video

A polished, step-by-step video walkthrough from Reef Rookies:

How to Identify and Fix Dinoflagellates in a Reef Tank! (Reef Rookies, 2026) Watch on YouTube

My own microscope videos

Raw footage, which is useful for comparing how your cells move. See the videos page.