Hi all, im thinking to set up a tank for this eels and i noe they are brackish. can i noe how to set up a brackish tank? im gonna use a 55 gallon for starter.. will change when they get bigger. meantime what other equipments i need? water parameters? temperature? and if i use no substrate is it ok? i just want to set up in the way that can make them healthy and happy, so hope u all can help me, thanks!!