TLDR all responses but how much time put into your tank is all relative to your own system.
If you had a 75G with, Rolling Fleece, Auto dosers or a Calcium Reactor, with a big ATO reservoir and you weren't a WC'er or you had an Auto WC system if you were you basically would spend a few hours on your tank a month.
If you have a 75G with Filter Floss the in the sump, heavily stocked and fed, a 5G only ATO, doing 20% Weekly Water changes you make yourself fresh daily on a 50GPD RODI system, you're manually dosing and feeding, and your lights aren't on timers. You could expect to spend at least an hour a day probably on the tank if not maybe an hour a day and 3-4 on Saturday.
So it's really again kind of relative to your system and what you're trying to accomplish.
If you want to spend less time on your tank yourself, automate things, or upgrade things that last longer/require less often maintenance.
Some of the most time savings things can be.
1. Getting larger buckets for mixing like 20-40G instead of 5G and get a larger 10+G ATO.
1a. Run your RODI while you do other maintenance. Make sure to set a timer on your phone or with an egg timer, oven whatever so you always remember to go check on the RODI. Also Mix overnight while you sleep, then all you gotta do is during the day, get the RODI Water filled, at night pour in the salt, and in the morning store it.
1b. Start using PUMPS to do your W/C's and mixing, and storing. Using pumps to get water into smaller 5G Containers instead of siphoning, or being able to use a 20G Brute on wheels now because you can use a pump to get your water into your tank instead of lifting and pouring can save a lot of effort physically and time wise.
2. Automating dosing and or supplement addition through a Calcium Reactor, this is super low maintenance like once a month. or do it with a doser. This is also like once a month maintenance, probably can go longer, but I always like to check on them and make sure they're working. You don't have that worry with a Calcium reactor, you can just trust your tests, and adjust it as needed.
3. Rolling Fleece Filtration. This is like super lazy style reefing, super low maintenace like once a month also, but $$$ a lot more .
anyway etc. etc. Stuff like that, as long as it starts to automate time consuming tasks you find yourself doing, or just get more done in the same time. i.e. mixing 5G takes basically just as long as mixing 10G or 15G. When you work out 20G vs 5G you save lots of time in the end.
If you had a 75G with, Rolling Fleece, Auto dosers or a Calcium Reactor, with a big ATO reservoir and you weren't a WC'er or you had an Auto WC system if you were you basically would spend a few hours on your tank a month.
If you have a 75G with Filter Floss the in the sump, heavily stocked and fed, a 5G only ATO, doing 20% Weekly Water changes you make yourself fresh daily on a 50GPD RODI system, you're manually dosing and feeding, and your lights aren't on timers. You could expect to spend at least an hour a day probably on the tank if not maybe an hour a day and 3-4 on Saturday.
So it's really again kind of relative to your system and what you're trying to accomplish.
If you want to spend less time on your tank yourself, automate things, or upgrade things that last longer/require less often maintenance.
Some of the most time savings things can be.
1. Getting larger buckets for mixing like 20-40G instead of 5G and get a larger 10+G ATO.
1a. Run your RODI while you do other maintenance. Make sure to set a timer on your phone or with an egg timer, oven whatever so you always remember to go check on the RODI. Also Mix overnight while you sleep, then all you gotta do is during the day, get the RODI Water filled, at night pour in the salt, and in the morning store it.
1b. Start using PUMPS to do your W/C's and mixing, and storing. Using pumps to get water into smaller 5G Containers instead of siphoning, or being able to use a 20G Brute on wheels now because you can use a pump to get your water into your tank instead of lifting and pouring can save a lot of effort physically and time wise.
2. Automating dosing and or supplement addition through a Calcium Reactor, this is super low maintenance like once a month. or do it with a doser. This is also like once a month maintenance, probably can go longer, but I always like to check on them and make sure they're working. You don't have that worry with a Calcium reactor, you can just trust your tests, and adjust it as needed.
3. Rolling Fleece Filtration. This is like super lazy style reefing, super low maintenace like once a month also, but $$$ a lot more .
anyway etc. etc. Stuff like that, as long as it starts to automate time consuming tasks you find yourself doing, or just get more done in the same time. i.e. mixing 5G takes basically just as long as mixing 10G or 15G. When you work out 20G vs 5G you save lots of time in the end.