I wasn't sure which forum this belonged in, but I thought since a lot of it has to do with equipment, I stuck it here. But it doesn't really fit, so @Art if it should be elsewhere, please move
Long trip might be measured in months. Put some limits on plants/fish you have. Low biological load. Fewer fish, and smaller fish. Less fish food. No rapid growing stem or floating plants. Random notes below.
You cannot have enough redundancy: multiple filter types, two smaller heaters instead of one large one, two types of feeders in case 1 fails. I even use two lower powered lights instead of one larger one. That way if one light fries, the other can carry on. And of course extra water changes before you leave.
Feeding: Rotating eheim feeder once a day, and i found an el cheapo on amazon that will feed every 4 days (most feed every single day, so check fine print). Set up the feeders and test for a few weeks before you leave. Yes. Weeks. Mine go all year long.
Dosing pump: I use a dosing pump for plant ferts and top off water. I mix my ferts diluted by 2X, and then only fertilize every other day with higher ml. My tank still gets the same dosage of chemicals, just instead of doing 5.5 ml, it's 22 ml. My reasoning: the dosing pump is more accurate with larger volumes. Using a dosing pump for top off water requires a fair amount of tuning, even with a covered tank, and water requirements are different in the summer vs winter for me.
No fast growing plants: no stem plants or fast growing floating plants:Whack plants waaay back before you leave. My last trip I screwed up and had three fast growing plants that just went wild (dwarf water lettuce, dwarf pennywort, and water sprite) and choked out all the light. No more. I think I'm going to limit myself to less ambitious plants.... Anubias, swords, bruce, crypts.... I also lower fert amounts, lower co2 amounts, lower lighting while away on extended trips. These are something I adjust a few weeks before I go, so I can see how it affects water testing numbers. Basically you are slowing down the tank, and praying to the algae gods that you don't get bad algae. So the scapecrunch thread on Middle Earth has been right up my alley. Make sure your CO2 tank isn't running on fumes.
Covered tank: humid environments jam up fish feeders. I keep my tank covered, which also lowers the amount of top of water needed (75 ml every day for my 55g).
Monitoring: I have a webcam or two pointed at the tank from different angles. For 30$, a wyze camera can give a lot of peace of mind. I use Alexa controlled Kasa plugs for my Lights, Co2. They seem rock solid. I use an el cheap dosing pump that isn't wifi controlled, so just in case, I have the 4 pump doser on a Kasa plug too. I feel like some of the apps for dosing pumps and lights can be fussy, and I can't reboot a bunch of stuff from 1000 miles away. If you are using apps for controlling equipment, test that it works when you aren't in bluetooth range, and aren't connected to your home wifi. It can be easy to forget which apps use wifi, and which use bluetooth. Take notes on what you learn so the next trip away goes better.
Try to not make last minute changes before you leave, and have a list of things to do that you always do before a long trip.
Long trip might be measured in months. Put some limits on plants/fish you have. Low biological load. Fewer fish, and smaller fish. Less fish food. No rapid growing stem or floating plants. Random notes below.
You cannot have enough redundancy: multiple filter types, two smaller heaters instead of one large one, two types of feeders in case 1 fails. I even use two lower powered lights instead of one larger one. That way if one light fries, the other can carry on. And of course extra water changes before you leave.
Feeding: Rotating eheim feeder once a day, and i found an el cheapo on amazon that will feed every 4 days (most feed every single day, so check fine print). Set up the feeders and test for a few weeks before you leave. Yes. Weeks. Mine go all year long.
Dosing pump: I use a dosing pump for plant ferts and top off water. I mix my ferts diluted by 2X, and then only fertilize every other day with higher ml. My tank still gets the same dosage of chemicals, just instead of doing 5.5 ml, it's 22 ml. My reasoning: the dosing pump is more accurate with larger volumes. Using a dosing pump for top off water requires a fair amount of tuning, even with a covered tank, and water requirements are different in the summer vs winter for me.
No fast growing plants: no stem plants or fast growing floating plants:Whack plants waaay back before you leave. My last trip I screwed up and had three fast growing plants that just went wild (dwarf water lettuce, dwarf pennywort, and water sprite) and choked out all the light. No more. I think I'm going to limit myself to less ambitious plants.... Anubias, swords, bruce, crypts.... I also lower fert amounts, lower co2 amounts, lower lighting while away on extended trips. These are something I adjust a few weeks before I go, so I can see how it affects water testing numbers. Basically you are slowing down the tank, and praying to the algae gods that you don't get bad algae. So the scapecrunch thread on Middle Earth has been right up my alley. Make sure your CO2 tank isn't running on fumes.
Covered tank: humid environments jam up fish feeders. I keep my tank covered, which also lowers the amount of top of water needed (75 ml every day for my 55g).
Monitoring: I have a webcam or two pointed at the tank from different angles. For 30$, a wyze camera can give a lot of peace of mind. I use Alexa controlled Kasa plugs for my Lights, Co2. They seem rock solid. I use an el cheap dosing pump that isn't wifi controlled, so just in case, I have the 4 pump doser on a Kasa plug too. I feel like some of the apps for dosing pumps and lights can be fussy, and I can't reboot a bunch of stuff from 1000 miles away. If you are using apps for controlling equipment, test that it works when you aren't in bluetooth range, and aren't connected to your home wifi. It can be easy to forget which apps use wifi, and which use bluetooth. Take notes on what you learn so the next trip away goes better.
Try to not make last minute changes before you leave, and have a list of things to do that you always do before a long trip.