Hello, As it currently stands now, it is practically impossible to farm ghast tears / wither skeleton heads on any active server. Why? Mob spawns are limited per world. In other words, there are a limited number of slots that can be taken up by mobs in (for example) the nether. This means, for example, that if is someone afk'ing and not killing unwanted zombie pigmen/blazes, those pigmen/blazes will sit next to them forever (or until they are logged off for AFKing). This means that a very small number of semi-AFK players can completely stop hostile mob spawns in a world (like the nether). This is detrimental to others and even to their own farming desires. I would like to offer two or three possible suggestions to eliminate this rather serious issue: 1) Institute a hostile mob "cull" every 10/15 minutes. While this would not completely stop the issue, it would allow a resetting of those trapped mob spawns occasionally (as it stands now, one can go hours without a freeing of the mob spawns). -I'm unfortunately not plugin-savvy enough to know a plugin name, but I know this can definitely be done very easily 2) Institute a similar mob cull, but make it more often and make certain mobs immune to the cull (ghasts, wither skeletons) -Not sure if this is possible Players may complain about option 1 (that it might on the very rare occasion eliminate a wither skeleton or a ghast). However, it would so vastly increase mob spawn rates for everyone that not doing it over the loss of a very rare ghast/wither skeleton every 10/15 mins is honestly ridiculous.