Building an overflow box is very easy, you can go to your local glass store a pick up a few pieces of glass, silicone and masking tape and away you go... I am sure there are reefers in your area willing to give you a hand in building if you are unsure.

i bought black lexan (plexi-glass) at Rona and built my own quite easily. the lexan gives you a much easier product to cut and drill then the glass does and it also comes solid clack which is more estheticly pleasing. Home Hardware sells an inexpensive and reliable aquarium safe silicone which bonded extremely well to the lexan. Others on here may disagree as I am fairly new to the saltwater fishkeeping myself?



180 gallon reef with 120g DIY sump w homemade stand and overflow