This morning when I was cleaning the glass I discovered a strange white blob stuck to the right-hand glass panel. On further examination I realised a lot more of these strange blobs were scattered along the length of the back glass. My first thought was that they were more limpets (because I have plenty of those already) but when viewed from the side these blobs lacked the pointy shape characteristic of limpets. When viewed through a magnifying glass it became clear that they were in fact egg sacs. I hadn't seen this particular type of egg sac in my tank before so they must have been laid by something recently added. Three Nerita sp. snails were introduced on the 23rd October 2020 and a quick search of the internet confirmed that these snails were probably responsible for the eggs. Unfortunately is unlikely that I will see baby snails develop in the future as the larva require sufficient planktonic food for survival. Shame!
Hi, my name is Lisa and I live in Derby, UK. I am a self-confessed reefaholic!