this mite not seam like an emergency to u but it is to me 1 of my litthe guy dosnt seam to be growing on i got 3 at the same size 35mm and 2 are now 45mm but 1 poor little goy is not growing he has now become listless and is not sholling with the other 6 the water stats are fine is there anything i can do for him or just accept his fate and put it down to cot death any help greatly apreciated