Doesn't look anything like any Caulerpa Racemosa I have ever seen. I vote bubble algae. Manual removal (with care taken not to burst them) is most effective (just use it as an excuse to do a water change) If you could get some out of the tank and onto white paper to photograph that would be awesome
Well you are either too slow to notice or were too lazy to read that it wasn't a hijack nor was it a new question it was about the OP's question. So I didn't notice how old the thread was and was trying to help and unfortunately I ran into too douches that have nothing better to do than try to...
if it's fowler then water changes aren't a big deal but if you are going to do frequent changes on a reef you should test and dose frequently to maintain nutrient levels
Duckie I have some questions for you... How does carbon reduce nitrates and PO4? How does the refugium help the skimmer? What added "on top" of live rock requires more frequent and larger water changes?
OP I have seen some very nice skimmerless/sumpless setups e.g...
FOWLR is your best bet for ease of maintenance. Are you looking for a traditional rectangular tank or a cube? I have to disagree with Duckie; you can get a ton of color in a 100g +/- tank
I would do a simple sump below with a refugium and a skimmer. You can hide the heaters down there as well...
If you want it done for you send it off to a lab or look into triton testing. There are some probes if you are running an aquarium controller otherwise you can looking to the hannah checkers & pinpoint products. Milwaukee makes a digital refractometer.
From some of my research I think I might. I have been considering trying out AquaCraft Marine Environment or maybe just doing a 50/50 mix of RSCP & Seachem