JB wrote:
My Frog died... I found him belly up on the bottom this morning, and
thought he was ok, but my female sword was nipping at him and he
wouldn't move, so I grabbed my net and moved him, he was stiff as they
come..

Question is do you think he was attacked, or maybe my borderline
Nitrite/Nitrate levels killed him?

Just curious...
Did you happen to buy it at Petsmart?
They're having a sale recently at a dollar a frog, and MANY came in
with bloat.
Several stores in my area have many die on them before being sold, many
returned dead, and it doesn't seem to stopping.
Bloat is a common disease for these cuties.