Pleco

[mypapercuthurts]

can i put another pleco in my 20 gallon tank?

 

[Tokis-Phoenix]

No you already have one that will outgrow it, common plecs grow an inch a month. When you've rehomed your current plec or got it the right sized tank, then would be best to start thinking about a new plec, otherwise you will just end up with more fish than you can handle or care for.