you don't need to keep buying bottles of pods and putting them in your tank. You just need a protected area the pods can reproduce (refugium/sump) so that the dragonets don't fully deplete the population. Tiggers pods do reproduce if you give them the right home. Buying bottles of pods and dumping them in your tank gets pricey (trust me

). Its worth it to buy one of these if you want to keep dragonets in a system under 75G
http://www.jlaquatics.com/product/AQ...+-++Small.html. Sure it seems a bit pricey at first but i have easily spent $200 (

maybe more) on pods. By having a HOB refugium you can be assured your dragonets will eat well and live heathy.