hey im ooking for a uv stereliser and i need help chosing the right one. tanksize 30" by 20" by 18". no sump. how many watts of UV i need? are all uvs ment for the saltwater aquaria?
i have been offered some second hand UVs. but is it difficult to find the uv replacement bulb? are all uv replacement bulb the same?
i have also saw the corallife turbo twister but that is really outa my range. any others to recommend??