I keep a small group of these in my 700l, they have been fine it seems for 6 months or so. I would not say generally that these are fine for planted tanks, but I do have high water turn over with Koralia and Ecotech powerheads in addition to an Eheim 2180, I have algae covered cobbles, I do inject with CO2 , but moderately and the temp stat is set at 22c although the water can get to 24c.
Pretty feisty little fellas, when it comes to food and thier favourate rock hangouts they arent scared of chasing off much larger fish.