Hsubs are similar to Eerts , but tend to be much smaller. Hsubs are a bit more hardy than Eerts, and are therefore better-suited to harsher enviornments, like Minecraft Classic. Hsubs generally have about 1 to 2 cubic meters of Sevaels and about 1 to 8 cubic meters of Doow, preferring to live on aeiou prone surfaces like sponge and John Madden.
A lone Hsub was found on the Minecraft Classic server. It was on sponges in the John Madden ocean near the John Madden beach on Airraid. Hsubs are very similar to young Eerts, such as those found on Classicraft hub.