Aquarium Troubleshooting

Fix common aquarium problems fast: gasping fish, cloudy or green water, ich, fish not eating, brown algae, erratic swimming, snail infestations, and ammonia spikes.

Fish Gasping at the Surface

Low oxygen, high ammonia, or too-warm water: how to tell.

Cloudy Water: How to Fix It

Bacterial bloom vs debris and the right response.

Green Aquarium Water (Algae Bloom)

Clear a pea-soup green water bloom for good.

White Spots on Fish (Ich)

Identify and treat ich before it spreads.

Why Are My Fish Not Eating?

Stress, water quality, illness, and new-tank nerves.

Brown Algae (Diatoms)

Why new tanks go brown and how to clear it.

Fish Swimming Erratically

Darting, glass-surfing, and what it means.

Fish Staying at the Bottom

When resting is normal and when it is a warning.

Snail Infestation

Control pest snails without nuking your tank.

Betta Lying at the Bottom / Lethargic

Common causes for a sluggish betta and what to check.

Fish Died Suddenly

The most likely causes when a healthy fish dies fast.

Ammonia Spike: Emergency Steps

What to do right now when ammonia climbs.

Aquarium Setup & Maintenance Planner

9 printable worksheets to plan your stocking, track your water tests and cycle, and stay on a maintenance schedule.

Get the Planner for $39