Hao not to be a downer but the 17" doesn't look to tikinso without the broken line on the bars. Also what classifies them as yellow base? Bro you should have called me I have a 17-18" koliba I could have gave you
I call them yellow base because compared to my CB Endli (grey-brown in color), these show more yellow. Not the best yellow base but close enough. As for the 17" being tikinso guinea or not, I will find out by asking other Poly experts. If it's not tikinso, even better! More variation in my tank. I didn't know you were letting go any bichirs.