I have a black bubles forming (growing) on a peice of live rock, they range in size from a tear drop to the size of a marble or thumb nail. They are very glossy black and hard to touch but can be slightly depressed...I stress they are growing? (slowly)
Who is the imposter in Ranzreef?
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Hello
If ya get a chance check out my website, it is a
overview of my system and how I built my 330 gallon
tank over 430 gallons of marine water volume.
http://members.shaw.ca/ranz/