yes...yes...yes...all true.
BUT............it's only true because you qualified your leak as a "small" leak. Wouldn't it be wonderful to be able to predict the future like that jk.
Anyhow...let me throw this out and see if we can find some common ground. In my first reply to this post I said that it is safer to either syphon or to have drain holes drilled high in the back instead of low or underneath. I'll drop the syphon argument (not because I'm ever wrong...but because some mortals just have a hard time understanding my reality) and I'll just make the point about having drain holes drilled high in the tank instead of low. That way, it is still gravity fed (whew to all syphon critics) and it won't completely drain your tank if you have a slow, medium, fast, gushing, bubbling, or gurgling leak in your outlet, hose, sump, brain, or return lines, etc, etc. (whew to me)