i'm in the process to set up a marine tank. it's 180 litre juwel Rio tank. i already have an external eheim filter, an 18 watt uv unit. after a bit of reading around here it seems that the best thing to do is a sump. the only thing is that i have limited space in the unit that came with the tank. but because i have my bigger tank beside the small one i am considering puting the sump in the other press. so the measurments for the sump would be h50, 35/35. i'm just wondering if this would work for me.
as for the lighting i have the old one that came with the tank, with 2xT5. is this enough for the marine setup or i'm goin to have to add one or two more bulbs?