Aiptasia are the reef pest that turns one small brown anemone into a plague. They arrive as hitchhikers on live rock or coral frags, reproduce explosively, and sting nearby corals with potent stinging cells. The single biggest mistake keepers make is trying to tear or...
Of all the nuisance outbreaks a reef keeper can face, dinoflagellates are among the most frustrating. They look like brown, stringy snot laced with trapped oxygen bubbles, they can appear and vanish on a daily cycle, and the usual instinct to scrub everything clean...
If a red, maroon, or purple slimy sheet is creeping across your sand bed, rock, and equipment, you are dealing with cyanobacteria, commonly called red slime algae. Despite the name it is not really an algae; it is an ancient photosynthetic bacteria, and that is...
Getting into the aquatic hobby means making one big decision up front: freshwater aquarium, saltwater aquarium, or backyard pond? They’re three genuinely different hobbies that happen to share some equipment. Each has its own cost profile, learning curve, time...
Almost every saltwater tank goes through an ugly phase. Brown films, hairy green tufts, or stubborn red slime show up in the first months and convince new reefers they are doing something terribly wrong. Usually they are not. Algae is a symptom, not a disease, and it...
