Dual mh for 60g

[Jake]

I got a 60g 36x16x24 with 60% sps (mostly montiporas) and 40% lps, i was wondering what would be the best for the tank:

2x 175w xm 20k or 2x 250w xm 20k?

The hood is the same price for both!

Thanks for your advice!

-Jake

[mseepman]

If I read your question right, your tank is 24" deep...then the lights should be the 250W as 175 may not give you good coverage all the way to the bottom.

[fkshiu]

Go with the dual 175W MHs and use either the Iwasaki 15K bulb if on an electronic ballast or the AB 13K bulb if using a magnetic ballast. Put your SPS up top and the LPS down low.

Both the respective setups will provide as much if not more PAR/PPFD than an 250W XM 20k bulb.


AB 175W 13K:
http://www.reeflightinginfo.arvixe.com/tabular-lamp-data.php?Watts=175&LampManuf=Aqualine+Buschke&Lamptype=Single+Ended&LampName=129&LampNameText=AB+175W+13000K+SE+1&BallastName=Select+Ballast+Name&BallastNameText=Select+Ballast+Name&Shielded=Select+Shielded&Submit=Search

Iwasaki 175W 15k:
http://www.reeflightinginfo.arvixe.com/tabular-lamp-data.php?Watts=175&LampManuf=Iwasaki&Lamptype=Single+Ended&LampName=128&LampNameText=Iwasaki+175W+15000K+SE+1&BallastName=Select+Ballast+Name&BallastNameText=Select+Ballast+Name&Shielded=Select+Shielded&Submit=Search

XM 250W 20k:
http://www.reeflightinginfo.arvixe.com/tabular-lamp-data.php?Watts=250&LampManuf=XM&Lamptype=Single+Ended&LampName=19&LampNameText=XM+250W+20000K+SE+1&BallastName=Select+Ballast+Name&BallastNameText=Select+Ballast+Name&Shielded=Select+Shielded&Submit=Search