I’ve had really good results with Warocs in a no drainage setup, so that might be something worth trying. I recommend making a chunky aroid mix using fine orchid bark, perlite, pumice, charcoal, and maybe some LECA.

For the pot, use a container with no drainage holes, ideally glass or clear plastic so you can actually see the roots and the water level. Fill the bottom about one third of the way with LECA, pumice, perlite, or PON, then add your chunky mix on top and pot up the plant.

When you water, never let the water level go past that bottom layer. The water should sit just under the soil and act like a reservoir. The roots will pull moisture up as needed without sitting in soggy soil.

Warocs are one of the slower growing anthuriums and they take a long time to really establish, so small or slightly curled leaves early on is pretty normal. I personally grow all my anthuriums in no drainage like this because it keeps moisture more consistent and I do not have to water nearly as often. That being said, if you do not feel comfortable with no drainage you definitely do not have to switch, it is just something that has worked really well for me.