Either or or all the above
I don't think it really matters. With a 29 gal
, you will probably be ok with just adding the sump and new SW
. You could easily do a water change at the same time though or wait a few weeks.
It should not effect your tank either way. What is more convenient
*180 gal Display, 100 gal basement sump, 33 gal refugium, 3x250 MH, 2x160 VHO actinics, zoos, some softies, LPS & lots of acros and other SPS.
*100 gal prop tank plumbed into main system w/ 2x96 PC lights and 1x150 MH,