Besides being "pelagic", Tigriopus californicus is actually a coolwater species that produces an inodinate number of males at "tropical" temps, so the culture eventually burns itself out rather quickly. However, these pods are great for one-time feedings.
A better choice would be a demersal species such as Tisbe sp., which are available from Premium Aquatics and other sellers of such critters. Note that these pods are much smaller than "tiggers" and aren't bright red swimmers, nor do they have a catchy nickname.
HTH