I loved bulldogs long before I started growing...
Not that security is a main concern of mine, but its nice knowing if someone were to break in unwelcome they would have 2-100lb meat bags waiting to greet them.
Maybe the pots are too small and the plants aren't receiving proper nutrients... I've had plants do this to me within a week or 2 of harvest.. looks like your pretty close anyways. I wouldn't do anything to fix it besides maybe give it just water the next time you water. You could also check...
When I first started I had a similar budget. I actually have every expense Calculated... My total cost was around $900, everything from the tent and lighting, to the pots, soil and nutrients. Not including seeds and home electric modifications, but seeds are reasonably priced for first time...