I’m looking to finish my stocking , currently in my tabk is 4 electric blue acara 8 Colombian tetra 3 geophagus and a sailfin pleco kept in a 5ft 500l at around 26-27c , my middle swim is full so iv been looking towards the bottom swim rather than the top , I’m pretty adamant that I’m staying South American not looking to mix firstly I was thinking bristlenose pleco , but after some advice I’m not sure they would mix too well with my sailfin pleco then was thinking corys as I’m changing my gravel to sand on the weekend but having 6-10 corys might be too much for the bio load ... I’m struggling to find fish tht fit my requirements that I click with what would you guys suggest?