Corals

We all know that ammonia is a dangerous substance in fish tanks, especially for marine animals such as fish, snails, and shrimp. But how do corals react to ammonia? Are they sensitive like fish? Or can they actually help with ammonia by consuming it? These are all questions I have often asked myself in the …

While many aquarium owners use light in their reef tanks, a growing number of them are becoming interested in corals that can thrive with little to no light. As I have received numerous questions on this topic, I have decided to compile all the essential information in one place. So, without further ado, let’s dive …

In my early days of fish keeping, I discovered that fish require several hours of darkness to sleep. But I knew little then about corals. Do these creatures sleep like other organisms in reef tanks? Do they need as many hours of darkness as humans? Since I heard many fish owners asking themselves the same …

It is widely known that corals need proper lighting to grow. But illuminating a reef tank is pretty challenging, as there are many factors to consider. Which types of corals require higher light intensities than others? Which color should I choose? How do I adjust the intensity? Since I have faced all these questions in …

We all know the variety of colors that reef tanks can be lit in, whether it’s blue, white, purple, green, red, etc. However, choosing the best color for a coral tank can be quite frustrating, as there are many variables in the equation. That is why I decided to devote an entire article to this …

It’s pretty well known that light has a direct correlation with the health of aquatic animals, including fish, shrimp, and snails. But how does it affect corals? Will they grow differently when exposed to different light intensities and colors? Since I asked myself this question quite often a few years ago, I decided to devote …

Most fish owners light their coral tanks in a way that feels right. Some do it in a way that makes their tank look pretty. Others are looking for ways to benefit their corals. But how much light exactly do corals need? This is a question I have asked myself countless times in the past. …

Most fish owners know that fish do not do well with light that lasts all night. Since they have no eyelids, they are not able to sleep. But little is known about corals and how they react when exposed to light all night, be it blue, white, red, or green. Since this has occupied my …

Most aquarists know that blue light is the ideal choice for corals. But not everyone likes it or how their reef tank looks in it. This automatically raises a question that I have personally asked myself countless times in the past: Can we just use white light in a tank containing corals? In this article, …

Corals are known to benefit from blue light, as it penetrates the water effectively and allows zooxanthellae to perform photosynthesis. However, less is known about other colors such as green. How do corals react to this color? Can aquarists use it in their reef tank? These are questions I asked myself all the time when …

We all know that aquarium corals do great with blue lights. However, less is known about red light and its role in coral growth. There is a common debate claiming that red light contributes to the photosynthesis of algae, and is therefore essential for corals as well. However, some researchers argue just the opposite. So, …

We all know that blue light is a common practice in reef tanks. Some aquarists even claim it makes their corals glow brightly. But how do corals actually react to blue light? Is it good to use this color in a coral tank? These are the questions I constantly asked myself in my early days …