Drake1588 wrote:The rock looks like limestone from the photos, so you're going to naturally trend toward hardening water over time no matter what you do. I'd be leery of keeping any cichlids I can think of in a 29 gallon long term. It's just not wide enough for how fast and powerful they are combined with their size.
I'm particular to certain aesthetics, but if you don't mind adding a little salt, bumblebee gobies might be incredibly fun to have in that tank. The sheer scale of rock and tank compared to their very small, yellow and black bodies seems really interesting, and fits right in with your idea of adding a few small plants to the middle.
Originally that was my plan, to have a school of really tiny fish to make the rocks look EXTRA big. But I also love the idea of having a single or duo fish. I cant decide

I love the idea of having bumblebee goby! These guys like a shoal correct? I am not experienced at all with brackish tanks, such as suitable plants, salt ratios when doing water changes, etc. But I am definitely willing to learn!
You don't think brichardi could do well in a 29 gallon? I really love the look of this fish. Just wondering

Thanks for the suggestion!