I gave him a list of instructions and tried my hardest to keep it all on one page so as to not overwhelm him! I have baggies numbered 1-10 in the fridge and freezer, depending on gel, frozen, or live foods being fed that day. Also showed him how to rinse the blackworms and how much to put in the cone.
Lights are on a timer and I showed him how to inspect the filter, heater, drop checker, and thermometer each day. Taped secondary instructions to my plant fertilizers for dosages.
He built the DIY water changer, so he knows how to use it. I told him to not bother with it unless a test comes back bad (Showed him how to use the testing equipment!). And, of course, he knows to call if anything is abnormal.
He asked how to count otocinclus and I just laughed. I told him there's five in there, but not to worry about counting them as I haven't been able to since the plants filled in. He'll be able to count all seven kuhlis, though, and of course the two puffers.
Whew! Doing a nice water change before I leave and then I'll get to spend the next week and a half missing my cats and worrying about my tank. This is going to be my first time away from the tank!
Hope I didn't forget anything.