so i got a 7 inch del and a 12 or so inch ornate so far guys but now i need a bigger tank >< just saw a 150 gal for 175$ with stand lids and lights hope i can get it haha!
Some of the max size are out of date.I'm a bit late bit this is just a copy and paste from the primer in the sticky section....
Species and sizes maximum known sizes often smaller in captivity
Upper Jaw Species-Upper jaw protrudes past lower jaw P. palmas palmas ('palmas' bichir)- 13" (subspecies)P. palmas polli ('marbled bichir)- 14" (subspecies) P. palmas buettikoferi ('buettikoferi' bichir)- 13" P. ornatipinnis ('ornate' bichir)- 27" P. delhezi ('armoured' or 'delhez's' bichir)- 14" P. senegalus senegalus ('Senegal' or 'Cuiver's' bichir)- 12" (possible subspecies)P. senegalus meridionalis- 12"+ There is, Also the possibility of a third member of the Polypterus senegalus group that is found in the Nile River P. retropinnis ('retropinnis' bichir)- 14" P .mokelembembe P. weeksi ('week's' bichir)- 20" P.teugelsi (found only in the Cross river)-16.75'' E. calabaricus ('Ropefish')- 15"-30" (Closer to 15''-20'' in captivity)
Lower Jaw Species-Lower protrudes past upper jaw P. endlicheri endlicheri ('saddled' or 'red' bichir)- 32", possibly more (subspecies)P. endlicheri congicus ('giant' or 'congo' bichir)- 39" P. Bichir lapradei ('Lapradei' bichir)- 24" P. bichir bichir-30+ '' P.ansorgii-28-30+''
There are a couple of as-yet-undescribed (scientifically) Polypterids