How Big Tank For 20 Plecos

for 20? i would say no less than a 30 or 40g and enough filtration to turn the tank 8 times an hour. plecs are amazingly nasty fish :p
 
with L numbers its more to do with tank footprint than volume L134 leopard frog plecs which are around 3.5"-4" require minimum 12" squared each due to territorial aggression
 

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