I have one from a year or two ago. Small, nothing like the nice large black type I got, those are emergent. The Green types seem to do better submersed.
Plenty of more suitable plants out there.
My advice is do not waste your money.
The broad darker leaf creepers are much nicer.
There are some that have larger leaves and near just as dark, but......not with the veins but you lose those anyhow.
So then it's more an issue of more upright growth form vs a creeping growth form.
B. catherine is also a more upright growth form with a darker color and a nice ruffle leaf margin. After about 6 months, they get pretty large under high light, rich CO2/ferts etc.
There are options, I would not bother or beat your head over this plant.
Does well emergent though.
About the only Buce that does not thrive submersed I've found.
If you are good with the greener colorations, then you are fine, there's also a few other more suited similar shaped species that are green and have that upright growth form, but they are not the black color like Catherine and some of the others.
SAE's, shrimp, rich ferts, sediment ferts/soil if you add them to soil..........CO2, light can be wide ranging, but moderate to low might be best, cooler temps, water changes, they are quite easy to grow.
If they get algae or BBA, SAE's are a good solution and then also use window screening to block a specific area of the tank where they are at if you need a split light intensity.
I keep Tonina in 1/2 under full light and then use screen to block the other 1/2 of the tank.
Work nicely.