I have a Cobalt C VUE 40 gallon tank. In the refugium area is two pumps. One is working fine with no issues. My other pump is generating almost no flow at all. I have cleaned it and tried everything. I want to replace the pump with something a little stronger. Basically this is a reason for my to upgrade my pump. I am looking for recmandations of pumps people use and had success with. Thanks in advance for any advice.
