13.5 Gallon Fluval Evo Reef Tank: A Two-Year Update and Review

This article documents the remarkable two-year journey of a 13.5-gallon Fluval Evo reef tank, showcasing its transformation from a neglected, sparsely populated aquarium to a thriving, vibrant reef ecosystem. Initially lacking attention despite consistent basic maintenance, the tank's potential remained unrealized until a renewed dedication reignited the owner's passion. This revitalization involved careful planning, meticulous coral selection, and diligent maintenance, resulting in a stunning visual display.The article details the process of rebuilding the reef, including sourcing corals from reputable suppliers like Scott Atos and Salt Critters, and the careful placement and arrangement of various species, such as GSP, Xenia, Zoanthids, hammers, and mushrooms. It highlights the importance of understanding individual coral needs for optimal growth and the effectiveness of a consistent maintenance routine, including regular water changes and filter cleaning, in preventing algae and maintaining a healthy environment. The journey serves as inspiration for aspiring reef keepers, emphasizing the rewards of patience, attention to detail, and commitment to proper care, even within smaller aquarium setups.

Pros And Cons

13.5 gallon Evo aquarium
  • Thriving corals
  • Improved flow after removing magnets from rocks
  • Algae-free (mostly)
  • Clear water
  • Neglected for a long time
  • One fish (a da Vinci mocha) is described as shy, aggressive, friendly and shy again, suggesting unpredictable temperament.

Read more: Top 5 Green Aquarium Corals

A Neglected Reef Tank Revival

This 13.5-gallon Fluval Evo saltwater aquarium, over two years old, had been neglected. While maintenance like water changes and filter cleaning were consistent, the tank lacked the attention it deserved in terms of coral additions and arrangement. It remained a largely empty canvas for too long, a project stalled by life's demands.

Overview of the neglected 13.5-gallon Fluval Evo reef tank.
Overview of the neglected 13.5-gallon Fluval Evo reef tank.

The initial enthusiasm for creating a thriving reef scape waned, leaving the tank largely untouched. Uncertainty about coral choices and placement further hindered progress, resulting in a lackluster display that fell far short of its potential.

Close-up showing the sparsely populated tank.
Close-up showing the sparsely populated tank.

However, renewed interest in the hobby spurred a transformation. The goal shifted to a visually appealing and well-maintained tank; a project worthy of the time and effort invested.

Image suggesting the renewed enthusiasm for the project.
Image suggesting the renewed enthusiasm for the project.

The Transformation Begins: Coral Additions and Placement

Over the past two months, significant progress has been made. New corals have been added, thriving in their new environment. Careful placement and arrangement of existing corals have dramatically improved the overall aesthetic.

Shot showing the progress made on the tank.
Shot showing the progress made on the tank.

The coral selection process involves considering the individual needs of each species, optimizing light and water flow for optimal growth and health. The goal is to create a visually balanced and vibrant ecosystem.

Showcase of the newly added corals.
Showcase of the newly added corals.

One inhabitant of note is a rather temperamental and shy Da Vinci mocha fish, adding an unexpected element of personality to this small but thriving ecosystem.

The shy Da Vinci mocha fish.
The shy Da Vinci mocha fish.

Coral Sourcing and Suppliers

Corals were sourced from several suppliers. Frags from the owner's larger 40-gallon tank provided a starting point. Additional corals were acquired from Scott Atos and Salt Critters, both praised for their high-quality offerings.

Mention of Scott Atos as a coral supplier.
Mention of Scott Atos as a coral supplier.

Scott Atos is highlighted for his extensive collection of fire corals, while Salt Critters is lauded for their reliable online ordering system and consistent top-tier quality. Links to both suppliers are included for those interested.

Mention of Salt Critters as a coral supplier.
Mention of Salt Critters as a coral supplier.

The owner emphasized the superior quality and service received from both sources, underscoring their reliability and contribution to the tank's transformation.

Further discussion regarding Scott Atos and his coral collection.
Further discussion regarding Scott Atos and his coral collection.

Tank Tour and Coral Showcase

A detailed tour of the tank showcases various coral species including GSP, Xenia, Zoanthids, hammers, and mushrooms. The owner expresses satisfaction with the growth of some corals, while acknowledging the temperamental nature of others.

GSP coral showcasing its growth.
GSP coral showcasing its growth.

The visual appeal of the tank is emphasized, particularly the vibrant colors and healthy growth of the corals. The arrangement aims for a visually appealing and balanced presentation.

Xenia pulsing.
Xenia pulsing.

A particular focus is on a striking, unidentified coral, which is highlighted for its beauty and unique characteristics, inviting viewers to identify the species.

The unidentified striking coral.
The unidentified striking coral.

Equipment and Maintenance

The tank is equipped with an AAT tuna protein skimmer. Maintenance consists of regular filter floss changes, the use of poly filter pads, and careful water changes to prevent algae growth.

The AAT tuna protein skimmer.
The AAT tuna protein skimmer.

The bare-bottom approach aids in maintaining water quality and minimizing algae issues, highlighting the importance of consistent maintenance in preventing problems. Any minor algae growth is addressed promptly with a toothbrush during cleaning.

Cleanliness of the tank.
Cleanliness of the tank.

The overall health and cleanliness of the tank is emphasized, showcasing the effectiveness of the maintenance routine and resulting in a vibrant reef environment.

Conclusion: A Successful Reef Tank Makeover

The 13.5-gallon Fluval Evo reef tank's transformation showcases the rewards of patience, attention to detail, and a commitment to proper maintenance. The initial neglect was overcome through renewed dedication and careful planning.

Final shot of the improved tank.
Final shot of the improved tank.

From a sparsely populated tank to a vibrant reef ecosystem, this project highlights the potential for even smaller systems to thrive with proper care and attention. The successful integration of various corals, along with diligent cleaning and water changes, results in a stunning display.

The project also serves as a testament to the importance of selecting reliable coral suppliers and taking the time to understand the needs of each species for creating a truly thriving and aesthetically pleasing reef tank.