consolidating tanks.... what to do with small tanks

I plan on plumbing in a couple smaller tanks in my new setup to make WC a snap...

 

What type of lighting should i use for this Display Refugium? I was really thinking that the JBJ K-2 MH fixture would be sweet because the fuge could be open top which would allow me to grow mangroves in it. But what is the best lighting for a Display Fuge?

 

anyone?

 

after thinking about plumbing the biocube into my system, im not sure i want to do it? I had a bean animal overflow installed in my 40gal breeder for a reason. A COMPLETELY SILENT AND FAILPROOF OVERFLOW SYSTEM. If i divert the plumbing to the 29gal biocube to use it as a refugium, i would be using gravity to feed it and an overflow box to drain it to the sump. This is not 100% fail proof and could lead to problems. IMO the Bean Animal is 100% failproof and why should i mess with that? I have a sump where i could grow cheato and some macros. If there isnt any real benefit to plumbing this 29 into my system, i think ill just find another use for it?