The fact that you're actually asking the question means that you haven't completely lost it. Otherwise this would have been a thread after the fact....
The regular tank a simple system. Its water, filters, plants and fish.
The most annoying at times is perhaps water changes and filter maintenance. Then the other bits come depending on ones idea of aesthetics and needs, i.e. trimming plants, cleaning algae, cleaning the substrate, etc.. But if the tank is set up correctly in the first place, you may not need cleaning filters in months(have a prefilter on the intake you can wash more often) In a low tech tank you can completely stop trimming for months and let it overgrow. You can completely stop syphoning the substrate for years. You can feed the fish just 3-4 times a week and they'll be completely healthy. You can set the light on a timer. You can forget about ferts.
The only bit you can't not do is slack on water changes. For that a python system is best. On a 200l tank I'd do 50% water change in 10min with just having to flip a switch in between siphoning water out and filling it back up. You won't even have time to get the coffee ready...
As for the cyano, if you feel battling it, its always organics related plus low oxygen. If the tank is old, there's a build up of it somewhere, be it in the substrate, filters, etc..Do a complete blackout for 3-4 days, then a large clean and a couple of large water changes. Get a bit more surface agitation going. Feed the fish a lot less afterwards, reduce the amount of light and then as long as you do weekly water changes, the cyano will eventually die down completely. Just ignore it while it lasts and keep doing your regular water changes. It can kill plants but won't kill the fish.
By the time you do all that and wait it out, perhaps you'll forget you lost interest
If the water changes are the problem, with or without a python or similar method to make it easier, perhaps its time to pull the plug, at least as far as fish go. A planted only tank could be a great enjoyment not having to worry about living things inside.
Good luck, whatever you decide to do.
