I have just a common pleco , and is in a 10 gallon tank for now , i want to move hime to my 29 gallon that has been running now for 2 weeks , how long should i wait to drop him in the new tank ,
You can do it now. Check the PH in both tanks and if they are different, acclimate your pleco to the new tank like you would when you bring fish home from the store.