The blog for serious aquarium keepers
MudCap AquaJournal's blog publishes practical, science-backed writing about freshwater and marine aquarium keeping. We cover water chemistry, aquascaping, fish profiles, reef keeping, and guides for hobbyists at every level.
Why we write
Most aquarium content online is either too shallow to be useful or too technical to be accessible. We aim for the middle ground: articles that respect the reader's intelligence and give them information they can actually use.
This blog is the content companion to the MudCap AquaJournal app — a tool for logging water parameters, tracking livestock, and getting AI-powered insights for your tanks. The blog provides the context and depth that a logging app can't: the why behind the numbers, the science behind the maintenance routines, the craft behind the aquascapes.
New articles are published every other Monday. Categories rotate and expand as the hobby evolves.
"The nitrogen cycle doesn't care how expensive your equipment is. Understanding the biology is what separates a thriving tank from a struggling one."
— Dr. Priya Nair, Water Chemistry contributor
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Start free →Contributors
Dr. Priya Nair
Water Chemistry & Fish HealthDr. Priya Nair holds a PhD in aquatic biology and has kept freshwater and marine aquariums for over 20 years. She translates complex water chemistry into practical guidance for hobbyists at every level.
Marco Delgado
Reef KeepingMarco has maintained reef tanks for 15 years and runs a local reef club in Austin, Texas. He specializes in SPS coral propagation, reef chemistry dosing, and aquarium photography.
Yuki Tanaka
AquascapingYuki is a competitive aquascaper and ADA-certified aquascaping instructor. Her work has been featured in Aqua Journal and the ADA International Aquatic Plants Layout Contest.
Sam Rivera
Fish Profiles & Beginner GuidesSam has kept and bred bettas for twelve years and maintains a YouTube channel dedicated to betta care and genetics. He writes practical, no-nonsense guides for new and intermediate fishkeepers.
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