My 10g is cycling really well. Ammonia-0, Nitrite-0, Nitrate 20-30. I have 2 Dalmatian Mollies, 2 Sunset Mollies, 1 Cory and 1 Tetra (small, maybe Columbian?). I also have two small fern plants and one moss ball. Filters are HOB waterfall filter and homemade K1 water bottle with mechanical filter on opening. Problem is that algae is going nuts. All over the glass and decorations. Last week I took the decorations out and brushed them off in old tank water. I also replaced the HOB filter pads. This week the algae is back in full force. I also lost a Dalmatian today. All other fish are fine and water cycle seems good. Perhaps the Dalmatian was something specific to that fish but I didn't see issues yesterday. So, what to do about the algae? Do I have too many live plants in there? I'm setting up a 55g so I have a place to move plants if I need to. That tank will likely have a Jack Demsey and convicts or Firemouth cichlids.