Gas Bubbles

Gas bubble disease does not necessarily come from the tank. Some ways to help make the tank environment less GBD friendly, though, include using a skimmer in the sump to aid in gas exchange and reducing dissolved organics, making sure there is enough surface agitation for gas exchange (so that pH is in the 8.2-8.4 range), directing flow so there aren't dead spots that would encourage ciliate growth, and keeping the water temperature below 74* to reduce the bacterial populations.
 
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