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Definitely a sponge. We will never know what type as there are thousands upon thousand of types of sponges. I have several in my tank. They are good as they filter out excessive nutrients that cause algea in the tank.
Definitely a sponge. We will never know what type as there are thousands upon thousand of types of sponges. I have several in my tank. They are good as they filter out excessive nutrients that cause algea in the tank.
+1 I have 4 different sponges that I've seen so far in my tank. One of which is pretty trippy looking. Almost has a carbon fiber three dimensional look to it lol