And that stock will diminish eventually without a fuge to breed in and hide in from other fish as well as the mandrin. My mandrins share their pods with the other fish in my tank besides each other. I have seen my wrasse eat pods off the glass, and my basslets like pods also. Its just not advisable and rarely works without a fuge. I had a mandrin yrs ago (didn't know better) in a 75 gal with 100 lbs of LR, rubble and chaeto, and it starved to death in a yr, and he ate live brine shrimp, they need pods to survive long term. Sorry.