Installing the filter-refugiums:
The filter-refugiums where custom built out of ½" acrylic. Each unit has six areas that are used for different purposes.
1) The return aquarium water is split and enters one of the two filters-refugiums. The first compartment contains the skimmer a (Tunze Master DOC Skimmer 9440.000 with two Hydrofoamer pumps). The discharge from the skimmer is directed into the next compartment. There is an elongated hole between these two compartments to allow for any imbalance arising from the amount of water going throw the skimmer and the amount of water entering the first compartment of filters-refugium.
2) Second compartment is the debubbling compartment. The discharge from the skimmer enters this space at the top. The compartment is filled with gulf ball size very pores lightweight pieces of live rock. These rocks sit on a raised floor made out of egg crate. This space is shielded from light by black acrylic. The water flows down through the rocks and under a wall & backup to an overflow, leading to the third compartment.
3) The third compartment is a cryptic zone. This space is filed with very pores lightweight pieces of live rock and is also shielded from light by black acrylic.
4) Fourth compartment is a dedicated refugium. On the bottom there are custom made acrylic boxes 2.5 inches deep. These boxes will be filled with Miracle Mud. This space is lit by a special Orphek pennant with a light spectrum designed specifically to grow algae.
5) The fifth compartment is a multipurpose space. It can be divided into three separate areas with removable partitions. ¼" plastic webbing is molded into each partition to allow water to pass through. Since I do not have the space for a fish or equipment room this area is my acclamation "“ frag tank, and or can be used for additional refugium space. It is lit by a 24" dual T5 fixture using Orphek 24" White, Blue and UV T5 LED Tube
6) Finally the sump, The sump will house a 1000 watt 230 volt stainless steel heater, three material reactors one each containing carbon, RowaPhos & Phosban and each sump will have a temp probe and a PH probe.
7) Each sump will have its own external Dolphin Amp Master Diamond Marine Abrasive Proof Pump - 4750 GPH (Type-4) they are quiet. This pump powers the filter-refugium and its three material reactors.
Drilling the holes for the bulkhead fittings & crossovers
Installing the filter-refugium
During the water test we found a small leak. With this installation I did not want to take any chances so instead of fixing the leak only we used EPO A+B epoxy Putty to reinforced & resealed all outside seams. It might not look that great but in this case, the piece of mind was worth it.