The substrate should be comfortable and in case you commit to spot rocks be certain These are sleek river rocks. I'd personally say this type of Betta is somewhat tougher to help keep due to the fragile crownlike fin texture. It is usually generally known as the “sea serpent” on https://aquariumtankrental.design.blog/2025/02/11/how-to-customise-your-pond-cleaning-services-kajang/