I have a huge pod population - they're easily seen on the glass, rocks, substrate, chaeto, etc. My green madarin and blenny love them. Since I removed the sponges between the fuge and the return pump in my fuge/sump, they're getting pumped to the main tank a lot more frequently. Sometimes I can find them in the main tank on the front glass, in areas of low current.
I had none until I bought a $5 pack of chaeto from an established system from eBay - look for ones claiming to have lots of pods
- they seem to survive the trip just fine.
180G build thread
180G All-glass with dual megaflows in a custom stand
AquaC EV-180 skimmer
250 pounds LR
160 pounds aragonite
Custom acrylic sump from GlassCages.com
2xPCX-40 return pumps
2x250MH 14K, 2x175MH 14K - PFO lighting, 2x65W PC
No-name 36W UV
Water General 125GPH RO/DI