Where to get a HOB Refugium

[Nano]

the aquaclear 70 or 110 would be perfect! its a very easy mod, google or youtube will have lots of options I personally say bigger is better, but thats just me, the 110 puts out a lot of flow, but I cut of every other impeller blade on the impeller so its flow is quite slow now, you just nee a little light and some silicone, and thats pretty well it