My glass 125G has been setup for 3 years. Last night I noticed drips and salt creep forming underneath one of the bulkhead fittings. I discovered I could tighten the bulkhead nut 1/4 turn by hand. I checked the other 3 bulkhead fittings and found each of them could be tightened 1/8 - 1/4 turn each. Is this something people check periodically? It's now part of my monthly maintenance routine.