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About the channel
Fix your freshwater aquarium problems with science-based solutions. Welcome to FishTank Mastery. Most aquariums don't fail suddenly; they fail quietly due to delayed mistakes. If you're struggling with cloudy water, stubborn algae, or "peaceful" fish turning aggressive, this is your source of truth. We bypass pet store myths and expensive gear, focusing strictly on biological balance, behavioral ecology, and low-tech stability. We also break down the best and worst species for your tank. From fixing nitrogen cycle crashes to our popular countdown lists exposing aggressive "monster" fish and beginner traps, we help you stock smart and maintain peace. Core Focus Areas: • Aquarium Science & Cycle Mastery • Species Breakdowns & Avoid Lists (Top picks & worst fish) • Low-Tech Planted Tanks (No CO2) • Algae Control & Water Clarity • Fish Compatibility & Aggression Fixes • Nano Tanks, Bettas & Shrimp Care
Latest videos
Ranking Nano Fish for 5 Gallon Tanks (Worst to BEST)
638 views · 09/05/2026
10 Planted Aquarium Mistakes Killing Your Plants (How to Fix)
7.5K views · 08/31/2026
The Most OVERRATED Freshwater Fish (And Safer Swaps)
5.56K views · 08/28/2026
10 CLOUDY WATER Mistakes That Reset Your Cycle
280 views · 08/24/2026
10 ANGELFISH Mistakes That Ruin Community Tanks
1.03K views · 08/21/2026
10 OSCAR FISH Mistakes Most Owners Make
399 views · 08/17/2026
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