large tank. footprint of 8x36 minimum height isnt as important. 24 should be ample. lots of current. a wave maker as well as a few strong powerheads with multiple patterns. basicly recreating a natural river flow. in the course should be large rocks for them to take refuge and spawn in. they wont spawn in direct current. they will choose a spot under cover. high oxgen levels are a must but with all the powerheads and a TIMED wave maker should be enough. id say over filtration is a must. 12-15 times per hour would be a good starting point depending on how well your filtration is set up. just some ideas. most of my tanks are set up in the same manner. example, my 100 gallon tank has 2 ac110s and a fluval 403. aprox 1350 gph. closer to 1100 real gph. i do 25% wc every week on that tank and its crystalllll. i wish i had a tank big enough to breed bichirs. my 240 or 225 wouldnt come close imo. good luck and keep us posted!