Those look like nice rocks and all, but I would be afraid to have such large rocks in the tank! What if you accidentally knock one when cleaning? It could be a disaster! Also, did you put something like egg crate on the bottom to cushion the rocks to the glass? (Unless they are on the gravel) Still I would be too nervous that an accident would come about and ruin my tank!
all of them ar flat on one side and Is my JD male or female?
Ok I might try that.