Large white spots

[Navarchus]

Lymphocyte! Do some regular water changes and try to improve your water quality.

[Millepora_Maniac]

No doubt, more water changes are almost always better!! Great advise, no matter how annoying doing a water change can be, it's the most important.

[Myka]

Do a Google search on Lymphocystis. You will find lots of info on it. It's not treatable, and not a big deal.

[martinmcnally]

Thanks for the advice guys, been doing water changes for the last few days and another one tomorrow. I think the spots are clearing up but now I see some small white ones *sigh*.

[Navarchus]

What percentage of water do you change?
Do you equalize the water parameters before you adding it to main system?
I suggest you equalize temp, salinity and ph and then add the new water via the sump.