Yo! I'm using 2.5 x 1.5 x 1.5 tank. Trying to achieve Berlin style filtration,got about
6kg LR,gonna slowly add but 1 Kg a w. eek(Good?) to get 15kg. Using Dolphin Hang-on filter,500L per hour with 900L/Hr Powerhead for undercurrent and SEIO 620 for circulation. About 6 weeks le,Ammonia less than 0, Nitrite 0, Nitrate 20-40. Using simple air-driven skimmer. Lighting is 2 x 18W FL, Actinic and Sera 12000k Blue Sky. Any comments on my system? Wat type of corals will suitable? A bit long,Thx!