"I'll have a section of wall, or several, collapsed to isolate that cavern lake, tall enough to seal it up to the ceiling. It presents a serious flaw in the defenses in its current state, but having an indoor fishery would be nice, if we can keep it stocked and the fish alive. We can install a pump behind a drawbridge (the drawbridge on the exterior, near fortifications that let water in, with the bridge of course closed most of the time to keep nasty beasties out.) to refill the isolated lake if need be. In addition, if this is done it will make a wonderful, safe water cistern for our wells.
We also need more residences carved out; we're 45 or so short unless everyone wants to bunk with some of the dwarven civilians. I heard Urist and Athel are a nice couple; barely make any noise when they procreate. Sure one of you guys would love to meet them... Dig some damn rooms; I ain't sharing. Stuffing 25 kobolds in a tiny room is hardly right, anyway! They should have vast tracts of open space, and bins to stash their "stolen goods" in. Doesn't need any furniture, just let them steal what isn't claimed and arrange it as they see fit, which seems to be in neat rows from my recollection of the stockpilesKobold Palace of our previous home.
But make our rooms 5x5, as is the standard for lower class in any dwarven fortress with decent miners among the populace, of which we have 4-5, including me and that Zanzetkuken guy, and a selection of stoneworkers who escaped with us. Don't worry; think of it like a quarry designation with extra supporting walls! Just stack the boulders neatly outside.
Now, stoneworkers; GET MOVIN'!"