where does it say about the 90% death rate of egg laying fish in captivity ?
i think that might be your stumbling block. perhaps this is true in the wild but i doubt its true in captivity. if main comparison is based on false information then you need to reconsider the whole thing.
read the thread on feeding rays thats on here and you might start to see things from the other side. then factor in tank costs, space utility bills etc. over a year you would probably make more on a group of guppys in a small tank
even if you were to only get 10% of eggs to hatch from a fish that lays anything up to a thousand eggs every month its going to be very high compared to a ray that gestates for 90 days and is unlikley to be constantly pregnant or if it is then probably have a much shorter lifespan
Let me put it in simple terms because you guys just don't get it. Let's try again. This time I only have one question. Why are most fw stingrays more expensive than lets say a Japanese perch- lates japonicus? So let me do some of your homework for you to save time. These perch are ver y very rare, have high demand, and aren't bred in the aquaria. I paid 250 for my last one.
Sent from my iPhone using MonsterAquariaNetwork app