I'd say this is quite common with ATF's .... firstly I'd say keeping the lights off for a day or 2 should help, and covering the back and sides of the tank should block the reflection that's making him freak .... also time and allowing him to adjust to the new tank should help, as well as maybe putting a soft plant on either end of the tank could possibly help ... I'd also say the size of your tank is not going to help this problem, as it is def on the small side, I'd be looking for a larger tank in the very near future
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