Seaman is probably right if you only have a 20
gal, maybee only one clown loach would be good.
My clown loachs grow about an inch every 18 months not exactly
a speedy grower. I think only wild ones get 12 inches store bought
ones usually max out at around 6 or 7 inches.
by the way great looking tank ... the pleco will
get bigger than a clown loach would, well good luck
oh and did i mention great looking tank ..

one suggestion though get one more cory for yourself
of the same species so they can be buds 4 life..

fish need freinds to ... ack ive edited this post like 10 times
now going to take a few steps back now congrats :bowing: :bowing: