Flatworms in Reef Tanks: How to Identify and Remove Them

Flatworms are among the most common reef-tank pests reported by aquarists, especially in systems that experience stress, nutrient imbalance, or frequent introductions of new livestock. While not all flatworms are harmful, several types can irritate corals or multiply rapidly, prompting urgent troubleshooting.

This guide explains what to look for, which signs suggest a pest species, and how to reduce their numbers using practical, aquarium-safe measures.

How to identify flatwo ... Read more »

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Mixed Reef vs SPS-Dominant Tanks: Lighting Needs

Mixed Reef vs SPS-Dominant Tanks: Lighting Needs Choosing between a mixed reef and an SPS-dominant system is less about “better” and more about whether you want flexibility and variety—or maximum coral growth potential with tighter control. Lighting is usually the deciding factor because SPS generally demands higher light and more stable conditions than many other reef corals. Below is a practical comparison of both approaches, with the pros and cons that matter most, plus the lighting needs reef keepers commonly p ... Read more »

Me & Velvet Sickness on the Reef: Safe Treatments

Me & Velvet Sickness on the Reef: Safe Treatments White spots, mucus coating, rapid weight loss: When Ich or Velvet disease (velvet disease) appear in a reef aquarium, every hour counts. Both diseases are caused by parasites that infest fish – while corals and invertebrates can be affected to varying degrees depending on the treatment. Therefore, it's crucial not only to know "what helps," but also "what is demonstrably safest for the reef." The following overview categorizes the typical symptoms, explai ... Read more »

Sustainable Coral Farming: How Aquaculture Is Changing the Hobby

Sustainable Coral Farming: How Aquaculture Is Changing the Hobby For years, coral reef hobbyists have faced a tradeoff: the desire to keep vibrant reef life at home, versus the environmental cost of extracting wild colonies. Increasingly, that equation is changing as sustainable coral farming expands—and as aquaculture becomes the industry standard for many popular species. Rather than taking corals from reefs, aquaculture nurseries grow corals in controlled systems, then supply fragments to hobbyists and retailers. The approach is gaining mo ... Read more »

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