My aquarium is 180g I have 2 pups(4"),5 discus(3.5"),4 clown loaches(4"), and i armatus(8"). All I use for filtration is 35L of K1 in a fluidized 55g with 2 filter socks. I never get ammonia or nitrite and i over feed them alot. My system has been running like this for 3 months with the pups and 2 years before them its really the best filtration in my opinion
Good luck with the tank I couldn't possibly see you having any issues especially with the K1 and the drip.