Hi Dazzler!

, Thanks for getting back to me! I did not use any soap or chemicals to clean the tank. All I did with the gravel was wash it well under warm water to remove ammonia, debris, and fish waste. No soap pr chemicals were used on anything. If I sent photos of my Pleco. could you identify his problem?. I have four live plants, natural gravel that I have had for several years, a large clam shell, four Geods, and a piece of Coral. All were in the tank previously before I had any problems with the exception of the live plants. Hoping to hear from you again soon! Thanks again- Dana