whenever i play with the tank i try to make shure no soap but maybee i got a bit on my hands i dought it though the bulbs that didnt grow i took out, its been running for a month i did add bio spira for up to 90 gallon it is a bit expensive then put fish in next day from a smaller tank. it does have a rust color that it didnt have its had bubbles for the last 5 days and i changed a quarter of the water using water from my good tank. the bubbles mellow out when i open the top but are still there. and it smells a bit looks like brown something growing on glass dont know thanks