Articles by Daniel Okafor

Fish · Behaviour

Why are my fish fighting

Fish aggression is usually not bad luck but a predictable result of the wrong mix, too little space, or too few of a schooling species. Here is how to work out the cause and calm the tank.

Daniel Okafor

Fish · Breeds

How big a tank does your fish really need

The tank sizes sold for popular fish are often far too small, and it is a leading cause of sick, stunted, short-lived fish. Here is how to think about tank size honestly.

Daniel Okafor

Fish · Health

Water changes and testing, explained simply

The two habits that keep a tank healthy are the two beginners most often skip. Here is how to do regular water changes and testing properly, and why they matter more than anything else.

Daniel Okafor

Fish · Behaviour

The signs your fish is stressed

Fish cannot yelp or hide under the bed, but they show stress clearly once you know what to look for. Here are the signs, and what they are usually telling you.

Daniel Okafor

Fish · Breeds

The best fish for a beginner

The fish sold to beginners are often the worst ones to start with. Here is how to choose hardy, forgiving fish, and the common first-tank mistakes that quietly doom them.

Daniel Okafor

Fish · Food

How much and how often to feed your fish

Overfeeding is one of the quickest ways to kill fish, and almost everyone does it. Here is how much your fish actually need, and why less really is more.

Daniel Okafor

Fish · Health

Why do my fish keep dying

If new fish keep dying within weeks, the water is almost always the reason, not bad luck. Here is the invisible problem behind most fish deaths, and how to stop it.

Daniel Okafor