Due to the size of the Cobalts and Acei once they are mature i would say you are almost maxed out.
Keep in mind that the better your filtration the better chance of stocking more fish. So if your filtration is top notch then it may be possible to add a dwarf species or up the number of you current stock :thumb:
Keep in mind that the better your filtration the better chance of stocking more fish. So if your filtration is top notch then it may be possible to add a dwarf species or up the number of you current stock :thumb: