Think about cholla instead of pvc when the time comes. It looks more "natural" & plants like anubias, ferns & moss can attach more easily than to plastic; but it doesn't last forever. All the cholla holes allow better water movement too, & shrimp love it.
Maybe the tiki needs a java fern or moss headdress? lol, maybe the teen would like to give him a moss "fro", "fade" or other style.
Really, just some fun thoughts. & there are "nicer" mosses than plain java (I find that a PITA). Xmas, fissidens or (not a moss) subwassertang, just some ideas. Take your time.
As for your filters, I'd run both for a month or 2.
Maybe the tiki needs a java fern or moss headdress? lol, maybe the teen would like to give him a moss "fro", "fade" or other style.
Really, just some fun thoughts. & there are "nicer" mosses than plain java (I find that a PITA). Xmas, fissidens or (not a moss) subwassertang, just some ideas. Take your time.
As for your filters, I'd run both for a month or 2.