I'd like to create a zoa garden on my baserock in my nano tank but it is extemely porous (more holes than rock) with very large holes. Makes it very hard for zoanthids to grow out due to its inability to grow out and spread. What could I use to "fill" some of the larger gaps and create a more even surface and it not look terrible. Crushed coral? Epoxy? Interested if anyone has tried to do anything similar and/or any ideas. TIA!
