You talking tool tools,,,or reefing tools,,,like hydrometers,,etc?
Think you are going the hand tool route with this one,,,
Hmmm,
Pliers,,the standard slip joint kind,and /or the channelock type,,,
Screwdrivers, slotted and phillips,,,based on what stuff you have to work on,will decide on what sizes you'll need.
Plastic tie wraps-teflon tape etc,,,not tools , but stuff you prob will need to have at the ready.
Single -edge razor blades, used for more than glass scraping.
Silicone grease-lube,,for those o-rings etc.
A small adjustable wrench-( I am lucky enuf to have a decent set of sockets/ratchets,in my basement tool box, saves me the trouble of going to the garage , if/when i need stuff like this)
Super/Crazy glue- for non fragging jobs,,along with a tube of reef safe silicone sealer,,
Plastic electrical tape,,,
Can't think of anything else really,,of a "gotta have" for the wet boxes i keep, that i would feel the need to keep near the tanks, just for use on /around them.
I had loads of hand tools around here, being a dealership auto mechanic,long .long time ago,and a current antique car guy,and all around fix it dude here on the "farm", so i have plenty of tools if/when needed. I tend to try to keep the tools i use around the tanks,as the lesser quality tools,,no need or desire to have my Snap -On tools rusting up being around my tanks..I tend to end up having tank tools as the "less" nicer tools from my vast collection on knuckle busting devices,,,
Not sure if this helped in making up a list of gotta have tools for tank stuff use,,,maybe someone else will add a needed addition to a reefing tool box,or i might come up with a for sure tool to add to my post here,,
One more thing,,,never use WD-40, oil etc, on the tools , to keep them nice and rust free,,,that stuff always will have a habit of somehow getting into your tank,,let the tank tools rust gracefully,,kinda adds a patina of salt water service look to them,,,
The same thing for letting them rust up real good n flakey,,the rust is prob not good for a tank IMO,,just wipe em off b4 and after you use them,,to keep the extra crud on the tools ,from making it into the tank.
Hope this helped somewhat,,hopefully we will get a bigger "gotta have" list here so you soon,,,
