4 Warning Signs of an Unhealthy Aquarium

Aquarium care can involve much more than general maintenance. An essential part of ensuring the health of your marine life is to frequently monitor them for signs of distress. Most potentially life-threatening problems may not be apparent at first glance, and being able to identify issues with your tank’s ecosystem can take a keen eye.

Keeping a marine aquarium can be a very rewarding hobby, but takes time, patience, and attention, even if you’re simply keeping a virtual aquarium! We have a look at some key warning signs of an unhealthy aquarium, and what you can do to mitigate any issues.

Changes in How Your Fish Behave

Fish can react to falling ill in a variety of ways, from being visibly lethargic to being overly energetic. You may even see your fish near the surface gasping for air. Any such changes mean you need to take immediate action to save their lives.

Always check the tank diagnostics, including the water chemical saturation, temperature, and oxygen levels. Any of those factors can cause a reaction in your fish.

Unusual Water Appearance

Unbalanced chemical levels can affect how your aquarium’s water looks. The water can turn a series of different colours depending on the circumstances, including white and a worrying reddish-brown.

White or cloudy water could mean the tank has an abundance of waste product that causes bacterial growth, but a reddish colour means there is an insufficient amount of oxygen in the water. Perform the appropriate tests to find the exact cause of the problem.

Dullness in Specimen Color

If the environment on the tank is not properly sustaining your marine wildlife, they may change colour. This can happen to fish, plants, and especially saltwater corals. Sometimes they may appear less vibrant, but others may take on a completely different hue. Make yourself familiar to the reasons why this may happen to remedy the issue before permanent damage is done.

Excessive Algae Growth

Excessive algae can bloom when the aquarium contains more nutrients than is needed by its inhabitants. Left for too long and it can make your tank uninhabitable, so be sure to give your marine life what they need, and not too much.

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