Folks, if you've recently upgraded or renewed your annual club membership but it's still not active, please reach out to the BOD or a moderator. The PayPal system has a slight bug which it doesn't allow it to activate the account on it's own.
I recently added a small Melanurus Wrasse to my 29 gallon reef tank - I read that they like to sleep in the sand bed and even saw it when I added him to the tank. Now I haven't seen him in a couple of days - do they hide in the sand for long periods? Are they mostly night dwellers?
I have been slowly changing the filtration in my biocube 29 (Coralife) - it is almost a year old and lately I've have had issues keeping the nitrates down - the rest of the water parameters are perfect. I have about 30lbs of live rock and 10lbs of live sand - do I still need the bio balls? A...