Bderick67;1825043; said:Gaining a little more info before suggesting a 50% water change would be wise.
What is your regular w/c schedule? What do your water parameters(ammonia, nitrite, nitrate, pH and temp) read? When you say "acting weird" please explain more.
Often times Ich is brought on by the fish becoming stressed, pH swing, temp drop, ammonia spike, etc. Your aro could be still suffering from what ever triggered the onset of Ich.