good evening. i am planning to build a marine aquarium i found a modern one the really in love with it but i have 2 doubt thing 1 they don't have a sump so i need to make external filter and external skimmer the size of the tank is 120x40x50 2 thing that he only have 4 t5 39 watt is that good for corals for soft coral i read you dont need to much light but for hard coral is that good? sry but i am new to marine aquarium. any suggestion will be appreciate
thanks
thanks