Treating a Sick Marine Fish? First Do No Harm!

When a fish in our care gets sick, it’s a perfectly understandable impulse to want to throw every cure we can lay our hands on at the problem. But sometimes rushing ahead with a medication or other treatment can do more harm than good. When the cure is worse than the disease With some fish … [Read More]

Some Subtle Signs that a Fish is Sick

Most marine aquarium hobbyists learn quickly to identify common warning signs of ill health in fish—white spots, excessive mucus production, bulging eyes, frayed fins, etc. But sometimes ailing fish exhibit much more subtle symptoms that are evident only to someone with powers of observation honed by many decades of experience. A copperband conundrum Recently, I … [Read More]

5 Techniques for Catching Fish in a Marine Aquarium

At one point or another, every marine aquarium hobbyist is faced with the necessity of capturing and removing a fish from a fully operational system—perhaps because the specimen is bullying tankmates, the victim of another specimen’s bullying, sick or injured, etc. Whatever the reason, the prospect of catching a fish that has “home field advantage” … [Read More]