I've developed a nasty case of brownies. I think it's just a
coincidence that I opened a new bag of salt, same company.
No new anything in the tank. I tried an inch of fine sand on
top of the old, but that didn't stop anything. I change 6
gallons of water per week from the 55 gallon tank. Here's a
pic with a few details:
http://www.personal.psu.edu/faculty/...l****erID.html
I'd appreciate any suggestions. It is seriously ugly.

rtk