Actually, this BGA is not due to new tank at all. There is a NO3 deficiency and water movement is limited. BGA IS also a PSB, therefore PSB will not help in this case. BGA is also bacteria, so the tank bacteria too will not help. There's been plenty of argument on this topic at the krib and still there's been no conclusive step to take to eliminate this pest. So far the most effective one is using an anti-biotic, the name of which I've forgotten but it is a prescription drug an as such must be careful in administering them in the right dosage and till every single cell dies!!!!! else, we have in our hand a drug resistant bga!!!!! ............. no no no no, dont try that method, its too risky. What I would suggest is to black out your tank for 3-4 days, meaning totally black out, using paper or board to cover your tank from top to bottom, off your CO2, dont feed your fishes or shrimps. After opening up, you'll be amazed by the sudden dissapperance!!!!! There after do a frequent water change to bring back the right balance of nutrients in the tank. Sounds like a lot of work but it works.

KG

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