if you can't afford more items inside the tank, just sit something up outside of the tank that could be a point of distraction for him. I think it was Tiara here who suggested that. a pringles can, a potted plant, sometimes I prop a stuffed toy (borrowed from the dog) near the tank. something colorful that might interest him. make sure, however, that if he flares at it repeatedly, to take it away as it's irritating him rather than entertaining him.
and good for you for getting him into the 5 gal.
30 g FW planted:corys, ABNP, blue angel, harleys, zebra danios, kribs, & nerite snails
15 g FW planted: crown tail betta, neons, snails
90 g FW semi planted: EBJD, congos, rainbows, ABNP, peppered cories, apple snails
90 Gal Journal: http://www.aquaticcommunity.com/aqua...ad.php?t=93939
Fishless cycling: http://www.aquaticcommunity.com/aqua...ead.php?t=5640
Cycling with fish: http://www.aquaticcommunity.com/aqua...ad.php?t=36492
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