My wife and I set up a 90g planted cube about 9 years ago. We set it up for livebearers and Cardinal tetras. Ha ving seen some of the stunning planted tanks I went all in and invested in all the "kit" for the 90g cube.
6 Months in of C02, fertilizers and vitamins and the planted tank was more maintenance then a 400g reef. I had lots of stem plants and they could grow 10" in 10 days. Even with a 28" tall tank it was constantly and overgrown jungle and not the tank I envisioned.
So I stopped all the additives and CO2. I have an RO/DI dedicated for the tank and it turns on for 20mins every morning acting as a topoff and at the same time a water change. I have a pipe in the overflow that drains to the sewer.
With the automated feeder on this tank I only touch this tank every month to refill the feeder and do equipment maintenance once a year.
When we redid our floors this past winter in moving the 90g out of the house a seam opened up on the tank. Interestingly with the tank drained to move it the tank leaked. We filled it back up with water to save the plants and stuff while we figured out what to do with a leaking tank (it was outside on a back patio) and when the tank was filled back up the seam closed itself up and the tank was water tight. Not even a seep.
But it was too much of a risk to bring it back into the house so we had a new 113g cube built out of starfire.
Dave B