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The Glass Thermometer That Was Reading 2°C Low
I had been keeping the tank at 25–26°C by a glass thermometer, then found out the sensor reads 27–28°C. A tank log about re-reading my own temperature records.
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When Torch and Leather Corals Finally Opened Again in a Nutrient-Poor Tank
One day, all of a sudden, my star polyps and acan coral looked fine, but… The polyps on my torch coral gradually became smaller, the mouth in the…
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The Torch Coral Is Shrinking
A personal reef tank log about a shrinking torch coral, clownfish rubbing, zero Po4, and why the coral’s mouth started to show more clearly.
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A Green Dot Next to the Star Polyps
“What is that green dot?” When I look around the tank, I see plenty of algae, floating bits, and things I can’t quite identify. Most of the time,…
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The Cheap, Easy-Looking Candy Cane Coral I Brought Home: Two Month Later
A personal reef tank note after bringing home an unplanned candy cane coral because the price felt easy, then watching it in the tank for about a month.
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Why the Return Pump Flow Had Slowed Down
A reef tank log about noticing weaker return pump flow during a water change, finding algae around the intake, and clearing what I could with a pipette.
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Why I Started Measuring Water Parameters with a Salifert Test Kit
I wrote down why I decided to measure KH/Alk, Ca, NO3, and PO4 directly in my 45-cube reef tank, and what each parameter means for coral, fish, and…
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How to Use the Salifert Ca Calcium Test Kit
A tank-log style record of using the Salifert Ca calcium test kit, including the measurement steps, syringe reading, and final 405 ppm result.
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A Look Back at the First Week of the strongorange Blog
A short reflection on the first week after launching strongorange.net, from writing and tweaking posts to thinking through what this blog should be.
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Nemo Looking Startled While Rubbing Against the Torch Coral
A short reef tank note about my clownfish rubbing against a torch coral, then looking startled when the flow pump stopped and the coral tentacles stopped moving.

