We get an amelanistic green sirensis from time to time. Actually, probably either Leucistic or hypomelanistic. We can tell from the start. Easily within the first week. The tads are much paler than a normal tad.Just a quick update;
Our bigger one finally died. He could not kick his bout with bouyancy. Our smaller one is still doing fine, no floating, and is now larger than the first one was when it started having problems. We also just hatched another amelanistic. The difference in appearance is more obvious than I would have thought, right out of the egg. It helps having a normal tad from the same clutch to compare side by side.