Fishtank photo session a bust

I haven’t posted about the tank in ages. In January, Kevin upped the Kalkwasser (a calcium hydroxide slurry) dosing to daily from a few times a week/when he thought of it, and now the tank (fish, corals and rocks) really looks amazing. We were so happy when Sanna noticed without prompting at Easter how “clean” the tank looked. She last saw it when it was still a bit turbulent from the move, so there was bound to be some improvement regardless, but we were all sorts of gratified.

Anyway, I went to take pictures, and first I had the wrong setting on the camera (Kevin had been out in the yard taking photos of the plants with his macro lens) and by the time I figured that out, the tang was so agitated that the clowns were riled up and half of the corals were retreating. Bummer. So here he is, fully flared, eyeing the camera through the clowns’ rock.

Tangs are extremely expressive fish. They have a top and bottom fin which they use for speed and steering. When they are wary or alarmed, you see them zoom from hiding spot to hiding spot, and stop (very suddenly) with the two fins totally extended to examine the threat. It changes the shape of the fish from essentially a triangle to a vertical oval, and is very distinctive. Here’s a good look of that pause, which lasts all of a second before he dispatches for safer ground.

And here in front of the rocks:

I really wish he didn’t find us so alarming. And it’s not just photos — feeding, cleaning, water changes: all cause for panic. I wish I could explain that they’re in his best interest. Fish-brained tang.

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