idk in a 30? maybe 1 green spotted puffer or 2-3 figure 8 puffers i would suggest the figure 8's because in a group the might come out more than just one
Really? I had a Needlenose for the longest time reach 12 inches and never had a single problen with it and it's tank mates till one time the LFS ran out of feeder's so they hadn't eaten and he tried to take a bite out of my Gar... Didn't turn out so good for him... Coolest thing I have ever seen but bad for him