As requested, here is an abridged version of all the suggestions put forth by club members to help make you and yours safer. If you have other suggestions, please feel free to post it, and I will augment the list. Happy reading, and be safe! This was originally from this safety checklist thread. Reefer's Safety Inspection Checklist PDF version Reefer's Safety Inspection Checklist [hr]Electrical Drip loops on your electrical cords are your friends. Extension cords and daisy chains are not your friends. That would be plugging several outlet strips or extension cords together. Extension cords are meant for temporary use only. If you do use an extension cord for your tank make sure it's rated well beyond the capacity. Check that electrical cords, plugs, and sockets are in good condition. Route power cords so that they are protected from pinching, chafing, and/or strain. Provide clear access to electrical breaker panels. Shut off power at a breaker or switch instead of pulling on a power cord in case of electrical problem or fire. Check that electrical connections fit securely and are free of corrosion. Locate electrical equipment so that it is protected from splashing, dripping, and flooding. Use child protection for open electrical outlets. Move all wiring and electrical sockets above the tank. Add more DJ panels if necessary. Have some sort of non-electricity using backup pump or have a battery backup or generator available. [hr]Plumbing/Water Have extra fresh water and pre mixed salt water in case of emergencies. Use siphon breaks where flooding may be an issue. Consider using an alarm for detecting water leaks. Check hoses and other plumbing for slow leaks. Make sure that tubing, hoses, and piping are secured from accidental dislodging. Have back up pumps. Invest in a Wet/Dry Vac or lots or towels. Cut all plumbing to size and install clamps and hose clamps where needed. [hr]Chemicals Store your reef chemicals where kids and pets can't get into them. Use eye protection and gloves as appropriate. Make sure containers of reef chemicals are labeled properly. Always have lots of carbon available. Keep poly pads handy. [hr]Equipment Have backup equipment on hand if possible. Test backup systems (battery power/ UPS, and battery operated air pumps) quarterly to ensure changes have not compromised them. Avoid buying crappy gear no matter how insignificant it may seem. [hr]Vacation On occasion, and usually before vacation, turn off the electrical circuits to the tank, check that the sump doesn't overflow and that no backflow occurs where you don't want it. Check to see that battery backups work. After the battery runs for a couple of hours, turn the electricity back on to make sure things are running again. Have super easy instructions for the caretaker. Have premeasured 2part or dosing or food. Leave nothing to be estimated, leave explicit instructions as to pour rate etc. Show the tank sitter some basics. Tell them to call if something is wrong before fixing anything. Remind them to wash their hands before feeding fish. Tell them not to clean the tank. Have fresh and salt water ready incase of emergency. Have a fellow reefer’s phone # readily accessible for your tank sitter. Do a "test-run." Leave the system for several days and see how the automated equipment is running - feeder feeding enough? [hr]Other Make sure that heaters do not accidently become exposed to air. Clean up any salt creep and salt spray. Try to foresee where any salt creep/spray will be! Where water from a skimmer bubbles back into the sump, or your tank return bubbles into your sump. You can get salt/water moving quite far without realizing it. Use fans to vent your stand and canopy. Change your bulbs regularly. Tell small children and your drunk friends that the tank can KILL YOU!!! Insure regular cleaning of pumps (vinegar bath). Keep a list of emergency contact by your tank in case you are not immediately reachable. Be careful of items that could fall or get knocked into your tank. Make sure UV shields are in place and/or intact. Glass panel for DE, and outer glass bulb for SE. Know your smells! Know what an electrical burning smell is. Know what a moldy/humid smell is. Protect your equipment from other household pets.