oh thanks riccia and yeoyL87 for the advices given, acutally my fish also same sympton as you. they normally swim freely but tends to hide when any one approach or have any movement. but i bought 16 rummy nose today @ c328. the cardinals seem to be braver after i add in the rummy nose. haha boast the cardinals confident. hope my cardinals will be braver after some time..
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