so i have a 20 gallon long tank that is prettily heavily planted with drift wood. i fell in love with a female L134 pleco that would go with my L134 male and albino brisletnose female (my only 2 fish in the tank) i had them hold her until tomorrow. i was wondering if i would have enough room for her and my 2 other plecos if i continue to do a 30 % wc weekly and not get another fish.