Home » Learning the Basics of Freshwater Aquarium Maintenance

Freshwater aquarium maintenance might seem as easy as feeding your fish at certain times of th e day. However, there is a lot more to it such as cleaning, water changes, filter changes, and more. There is a bit of art and science in the maintenance of an aquarium, which makes paying attention to your aquarium very important.

Many times, beginners in the aquarium hobby become overenthusiastic and often times buy an assortment of fish, toss them all in the tank, without thought to the carrying capacity of the tank. The carrying capacity relates to the number and size of fish in a tank. This is a hazardous practice, because there will be an imbalance within the tank. The ammonia produced by all the fish would be greater than the ammonia-eating bacteria, thus putting your fish at risk of stress or death as excessive ammonia is produced.

It is good to have a basic understanding of the nitrogen cycle for proper freshwater aquarium maintenance. The bacteria that consume ammonia produce nitrate and nitrite. The whole point is that you want to have a balance with your fish and their aquarium. You can monitor this by measuring the amount of ammonia within your tank with water testing kits or test strips. Or, you can be conservative on the number or size of fish you put in your tank and not have to worry about excessive ammonia build-up. 

Finally, changing water in the tank must also be done periodically. This can further remove remove wastes and prevent mineral buildup at the same time. You can do this by siphoning water out from the tank and then replacing it with clean water. A fifth to a third of the water would be a good start, and should be done every couple weeks, every month at a minimum. Again, this activity can be done less frequently if you have less fish in your aquarium. 

One thing that you should remember while changing water is to never change all of the water at one time. This could cause stress to the fish as they will have to adapt to the new water. Also, you would reduce the amount of healthy bacteria by diluting your freshwater aquarium with tap water. 

A few tips to reduce the amount of maintenance, specifically, cleaning the tank are to 1) have a filter system that is more than adequate for the size of your tank, 2) use a larger tank if possible, they are easier to maintain a more stable environment, and 3) don’t put too many fish in your aquarium. Indeed, there is a lot to learn and to be considered for freshwater aquarium maintenance, but once you get the hang of it, everything will flow smoothly and will become routine.