Water going into my sump is full of bubble, and when it travels through the refugium chamber, bubble are getting less and less and when water return to main tank, there is no bubble.
The whole system work ok except that my cheato in the refugium are floating because of the accumulation of bubble, and as a result, the top layer always get "sun burn" as it floats above the surface and dried up by my 24/7 T5 lighting.
Any suggestion how to get around this? I really don't want to put any cotton wool or filter socks as it will increase my maintenance work, and reduce the efficiency of my skimmer.
The whole system work ok except that my cheato in the refugium are floating because of the accumulation of bubble, and as a result, the top layer always get "sun burn" as it floats above the surface and dried up by my 24/7 T5 lighting.
Any suggestion how to get around this? I really don't want to put any cotton wool or filter socks as it will increase my maintenance work, and reduce the efficiency of my skimmer.