Donny Miller

Hi, I’m Donny! I’ve been an active aquarium hobbyist for over 15 years, currently maintaining a "fish room" that includes a 50-gallon community tank, a 20-gallon long aquascape, and a specialized nano betta setup. I founded FishTankFAQ.com to move past the "fluff" and provide hands-on, tested advice for fellow keepers. From troubleshooting 3-month algae battles to perfecting the nitrogen cycle, I’ve made the mistakes so you don’t have to. When I'm not tinkering with my 4 active tanks, you can find me sharing advice, testing the latest fish tank gear.

How to Make Fish Tank Water Clear

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There is nothing more frustrating than spending hours aquascaping a tank only to have it look like a foggy swamp the next morning. I’ve been there. During my first few years in the hobby, I spent a small fortune on ‘clear water’ chemicals before I realized that the secret to crystal clear water isn’t a … Read more

How to Bring Aquarium pH Down Easily

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A Complete Beginner’s Guide (Updated for 2026) Hey everyone, Donny here, a regular guy who loves running a few tanks in my apartment and helping friends set up and keep their tanks healthy. I’ve been doing it for more than way more than ten years, and I’m loving every messy minute of it. High pH … Read more

Starting A Fish Tank For Beginners

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I still remember the day I brought home my first aquarium 15 years ago. Everything I did was wrong. I bought the fish the same day as the tank, overfed them until the water looked like milk, and had no clue what ‘cycling’ meant. If you’re feeling a bit overwhelmed right now, good—that means you … Read more