Blue/Purple Sponge (Asia Pacific) Size:5-7 Inch It grows up to 5

It grows up to 5 inches and needs an aquarium of at least 75 gallons

however their growth potential is spectacular

5 inches and should be kept in an aquarium of at least 300 gallons

however it is more aggressive

Blue/Purple Sponge (Asia Pacific) Size:5-7 Inch It grows up to 5This sponge comes in fantastic shades of azure to ultramarine, which are very rare hues on the reef. It has a rigid form resembling high volcanoes with oscula at the peak. It comes firmly attached to a piece of substrate. This Sponge requires both light for energy and fine filter foods such as phyto and zooplankton, coral snow and small edible particles which may be found in mature aquariums. Occasionally stirring the sand may release some food items