I read ages ago that a neon tetra weighs between 0.5 to 0.8 gramm, don't know how true this is.
Today read about a 13 inch midas weighing in at 2.8lbs = 1270g
So if both weights are right 1270g divided by 0.8g comes to 1587.5 or 1 inch of adult midas = 115 neon tetra.
Today read about a 13 inch midas weighing in at 2.8lbs = 1270g
So if both weights are right 1270g divided by 0.8g comes to 1587.5 or 1 inch of adult midas = 115 neon tetra.