My open brain has been shriveled up recently sometimes during the day. It was never like this before. I'm almost sure it's due to the lack of a skimmer, which I'm waiting to have returned from Euroreef (warranty repair). How often should I be doing water changes if I dont have a skimmer on the tank? I have no fish yet, only crabs and snails. It's a 100 gal tank plus 30 gal sump.
Thanks for any advise.. I really love this brain, and I want to make sure it does well.
Here is a picture.. that shows it is spewing out some dark brown stuff (2nd time Ive seen it do this). What is it?
Thanks
Thanks for any advise.. I really love this brain, and I want to make sure it does well.
Here is a picture.. that shows it is spewing out some dark brown stuff (2nd time Ive seen it do this). What is it?

Thanks