My Journey with Nano Aquariums: A 20-Gallon Saltwater Reef Tank
For many aquarium enthusiasts, the journey often begins with a nano aquarium, a term that refers to small tanks that can still offer a substantial amount of viewing enjoyment. Over time, these enthusiasts may look to upgrade their tanks, as I did with my recent transition from a 10-gallon saltwater reef tank to a larger 20-gallon model. This article will delve into my experience and provide insights for those considering a similar upgrade and setup.
Current Setup and Tank Details
My current 20-gallon tank is a saltwater reef tank, which has allowed me to create a more expansive and diverse ecosystem. The tank includes a variety of species, including a pistol shrimp, a yellow goby, a clownfish, and now, a firefish. I have also created a vibrant coral community, with most of the rocks densely covered in zoanthids (zoas) and green star polyps (GSP).
Equipment and Maintenance
The initial setup included a powerhead placed on a sporadic timer, which helped to maintain water movement within the tank. However, to further enhance the water quality and biodiversity, I added a second hang-on-back powerhead after upgrading the tank size. This setup has significantly improved water circulation, which is crucial for both the health of the coral and the behavior of the fish.
Water quality is, of course, a crucial factor in maintaining a healthy tank. To address some algae issues that I faced, I increased the frequency of water changes to 25-50% every week. While this is a significant commitment, it has helped to keep the tank looking pristine and clear. Overfeeding also needed to be managed to prevent algae overgrowth, so strict feeding schedules were established.
Challenges and Solutions
One of the challenges I faced was ensuring that the tank was properly set up for the needs of the inhabitants. Coral requires specific environmental conditions, including stable water temperatures, salinity, and lighting. I made sure to monitor and adjust the water parameters regularly to provide a suitable environment for the corals and fish.
There were also some initial algae issues, which I attributed to my own management of the water changes. Over extending the intervals between changes allowed for an accumulation of nutrients, leading to rapid algae growth. By addressing this mistake and adhering to a strict schedule of water changes, I was able to mitigate the problem and maintain a clear and healthy tank.
Cost and Enjoyment
The financial investment in a saltwater reef tank, especially once it reaches the nano category, can be significant. I have probably invested nearly $1,000 into my current setup, which includes the cost of the tank, additional equipment, and the ongoing expenses of maintaining the saltwater and reverse osmosis (RO) water. These costs can be a barrier for those who are new to fishkeeping or have limited disposable income.
Despite the financial investment, the rewards are immense. The tank has proven to be both my most successful and enjoyable project. The vibrant colors of the corals, the playful behavior of the fish, and the intricate ecosystem that has developed make the tank a visual treat every day. For anyone looking to take their tank to the next level without overcomplicating their setup, a 20-gallon saltwater reef tank can be an excellent choice.
Before making a similar upgrade, it is important to consider the maintenance requirements and ensure that the current or future owner is committed to providing the necessary care. The key to a thriving tank lies in a combination of proper setup, regular maintenance, and a deep understanding of the needs of the species being housed.