madmark285
Fishaholic
?? Not sure why you mentioned that. My question was, are you going to design a system where water can flow thru the gravel bed supporting emersed plants?Gravel vac??
Just an idea. For my planned Mbuna tank, I wanted to create caves in the substrate for the mbunas. So what I did, filled a balloon with sand then poured foam (2 part urethane foam, 3# density) around it. After the foam cured, cut the balloon and vacuum the sand out. This method could be used to create planter boxes. Here are some prototype photo.