Hmm, in that case, maybe for now at least rays are off the cards. Mine is now at least 60%+ covered with plants and wood. The wood I have in the 5 foot is what I plan to move to the 8, so I guess I will have to wait and see how much space there is in there. Looking at the wood, I will probably have more like 30% covered, depending on how many plants I keep.
What about Eels? Been looking at a few, the Snowflake Moray seems cool but there are several conflicting opinions about whether it can actually be kept in a freshwater tank. I do use a bit of salt, I dose with Seachem American Cichlid Salt, but I doubt it's anywhere enough to be considered brackish.