The Aquarium Adviser
Saltwater

Photo by Mike Johnston on Openverse (CC BY 2.0)

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Saltwater

13 Most Essential Water Testing for Your Corals.
Saltwater

13 Most Essential Water Testing for Your Corals.

Success with corals depends on two things: keeping your animals healthy and maintaining stable water parameters. Here are the 13 most important water tests every coral keeper should know and run regularly.

Photo by 4nitsirk on Openverse (CC BY-SA 2.0)

Foxface Fish Care: Are they reef-safe fish?
Fish

Foxface Fish Care: Are they reef-safe fish?

Foxface rabbitfish are stunning, herbivorous algae-eaters popular in reef tanks, but they're only partially reef-safe due to an occasional tendency to nip at corals, particularly as they mature and grow larger.

Photo via Openverse (CC0)

Harlequin Sweetlips (spotted sweetlips) Care
Fish

Harlequin Sweetlips (spotted sweetlips) Care

Harlequin sweetlips are peaceful but demanding grunts that reach three feet long and require at least 180 gallons, live feeding when young, and careful compatibility planning due to their predatory nature toward invertebrates and small fish.

Photo by krokodiver on Openverse (CC BY 2.0)

How to Set Up a Quarantine Tank for Saltwater Fish
Saltwater

How to Set Up a Quarantine Tank for Saltwater Fish

A quarantine tank is an essential safeguard for any saltwater aquarist, allowing you to isolate and observe new fish and corals for 2-4 weeks before introducing them to your main tank-dramatically reducing the risk of disease and parasite outbreaks.

Photo by Sydney Heritage on Openverse (CC BY 2.0)

Learn How to Use a Deep Sand Bed in Your Tank
Saltwater

Learn How to Use a Deep Sand Bed in Your Tank

A deep sand bed (DSB) is a 3-6 inch layer of fine sand colonized by beneficial bacteria and sand-dwelling organisms that acts as a biological filter in saltwater aquariums. When set up correctly, it performs both nitrification and denitrification, helping to maintain stable water chemistry in reef and marine systems.

Photo by 300td.org on Openverse (CC BY 2.0)

Saltwater

How to Cure Live Rock in 7 Steps

Freshly imported live rock needs careful curing in an isolated container to remove decaying organisms and toxic compounds before you add it to your display tank. The process typically takes 2-4 weeks and requires daily water changes, circulation, and careful monitoring.

Types of Live Rock for Saltwater Aquarium
Saltwater

Types of Live Rock for Saltwater Aquarium

Live rock is the foundation of a successful saltwater aquarium, providing both biological filtration and habitat-but choosing the right type and understanding cured versus uncured rock is crucial to avoid costly disasters.

Photo by Wonderlane on Openverse (CC BY 2.0)

7 Types of Saltwater Angelfish (Pomacanthidae Family)
Fish

7 Types of Saltwater Angelfish (Pomacanthidae Family)

Saltwater angelfish (family Pomacanthidae) range from peaceful dwarf species to majestic large fish, each with distinct coloring, behavior, and care requirements-but none breed reliably in captivity.

Photo by Derek Keats on Openverse (CC BY 2.0)

Puffer Fish - Tankmates and Diet
Fish

Puffer Fish - Tankmates and Diet

Puffer fish are aggressive and demand specialized care-most species cannot safely live with other fish, and they require live or hard-shelled prey to keep their teeth sharp and healthy.

Photo by wwarby on Openverse (CC BY 2.0)