The Aquarium Adviser
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Can I Feed My Fish Spinach? How To Add Spinach To Your Fishes Diet
Fish

Can I Feed My Fish Spinach? How To Add Spinach To Your Fishes Diet

Most tropical fish can safely eat spinach as a treat, but only raw, unsalted spinach prepared correctly-avoid canned and frozen varieties, which contain added salt that can harm your fish and destabilize water chemistry.

Photo by Seattle Municipal Archives on Openverse (CC BY 2.0)

Honduran Red Point Cichlid vs Convict Cichlid - What Are the Differences?
Fish

Honduran Red Point Cichlid vs Convict Cichlid - What Are the Differences?

Honduran red points are peaceful cichlids suited to planted tanks, while convicts are aggressive diggers that need substantial space and typically must be kept alone. Understanding these core differences-temperament, tank size, water chemistry, and plant compatibility-is essential before choosing which species fits your setup.

Photo by Deanpemberton on Openverse (CC BY-SA 3.0)

Can Jack Dempsey Fish Live with African Cichlids?
Fish

Can Jack Dempsey Fish Live with African Cichlids?

Jack Dempsey and African Cichlids generally do not make compatible tank mates due to aggressive temperaments and size differences that often lead to bullying and injury. Learn why these cichlids conflict and what species work better together.

Photo by OutlierForLife on Openverse (CC BY 2.0)

Corydoras and Gravel - Best Gravel and Sand for Corydoras
Aquarium Equipment

Corydoras and Gravel - Best Gravel and Sand for Corydoras

Sand is the best substrate for corydoras catfish because they are natural bottom feeders that need to sift and root through soft material without injuring their sensitive barbels. Gravel and bare bottom tanks are less ideal but can work in certain situations.

Photo by Tino Strauss on Openverse (CC BY-SA 3.0)

Can Guppies Live in Brackish Water? Can They Tolerate Salt?
Fish

Can Guppies Live in Brackish Water? Can They Tolerate Salt?

Guppies can tolerate brackish water and salt, and in fact originate from naturally brackish environments, though they adapt well to freshwater home tanks too. Here's everything you need to know about guppy water conditions and brackish aquarium setup.

Photo by Carlos Eduardo Joos on Openverse (CC BY 2.0)

Albino Rainbow Shark, a Complete Guide
Fish

Albino Rainbow Shark, a Complete Guide

Albino rainbow sharks are striking, energetic fish that need at least 50 gallons and careful tank mates due to their territorial nature. Learn the essential water parameters, feeding, tank layout, and compatibility requirements to keep one healthy.

Photo by MSVG on Openverse (CC BY 2.0)

Striped marsh frog tadpoles
Fish

Can Tadpoles Live With Goldfish?

Goldfish and tadpoles can technically share a pond, but it's risky: goldfish naturally eat tadpoles, especially small ones. Success requires careful planning with hiding spots, adequate feeding, and separate zones.

Photo by John Tann (CC BY 2.0)

Iridovirus Dwarf Gourami Disease - Symptoms and Treatment
Fish

Iridovirus Dwarf Gourami Disease - Symptoms and Treatment

Dwarf gourami iridovirus is an incurable viral infection that affects only gouramis in freshwater aquariums. Recognizing early symptoms-including color loss, bloating, appetite loss, and lethargy-is crucial for isolating sick fish and supporting their immune system, even though no cure exists.

Photo by Debivort at English Wikipedia on Openverse (CC BY-SA 3.0)

Do Plecos Need Driftwood? What Are The Benefits?
Fish

Do Plecos Need Driftwood? What Are The Benefits?

Plecos don't strictly need driftwood to survive, but it offers real digestive, behavioral, and water-quality benefits that most pleco keepers should seriously consider. Learn when and why adding driftwood makes sense for your tank.

Photo by prague.czech.photo on Openverse (CC BY 2.0)