Metal halide-Penetration

[mseepman]

My thoughts on my 150 not being bright enough stem from a few different things, including observations on corals put at the bottom of the tank.

First off, the general consensus on RC, here and RAG all seem to agree that 150 HQI is still not meant for deep tanks. Secondly, if I put a clam on the bottom of my tank (I have about 1" of sand) it will die in a relatively short period of time. If I move it up, it can thrive. Any coral that has required a reasonable amount of light has been unsuccessful if I put it near the bottom of my tank.

I have run the original Coralife 10k, Coralife 14k, a Sun-blaze 14k, and now will be switching to a new Ushio 10k this weekend.

So far, these are just my observations with my own tank.

[Doug]

Originally Posted by mseepman

My thoughts on my 150 not being bright enough stem from a few different things, including observations on corals put at the bottom of the tank.

First off, the general consensus on RC, here and RAG all seem to agree that 150 HQI is still not meant for deep tanks. Secondly, if I put a clam on the bottom of my tank (I have about 1" of sand) it will die in a relatively short period of time. If I move it up, it can thrive. Any coral that has required a reasonable amount of light has been unsuccessful if I put it near the bottom of my tank.

I have run the original Coralife 10k, Coralife 14k, a Sun-blaze 14k, and now will be switching to a new Ushio 10k this weekend.

So far, these are just my observations with my own tank.

Interesting observations. I agree about Sean making a good point though.

[Skimmerking]

Well Doug i agree with you I was talking to Jamie at the store and that 6 ft fixture he has over the 180 is nice and it can be made to fit a 60" tank. so would 3 150's De be enough for my future tank with the legs it can be turned inward to fit. where in the tank will be some sps and lps and softies, and my clams will be on the bottom like the derasa's and the maxima and the crocea will be on ther rocks. So really in a 24" tank with a 2" sand bed. and the lights being.

I know when I had my 280 gal i had 8 normal flouresants and 4 actincs over a 30" tank and kept softies in there remember that Doug. I also had my 250's in my 170 hanging over my inwall tank they were up 16 " with the 24" BBtank. 42" and had no problem. So look at the T-5's Doug you have limited light over your tank and you sps are doing great. It looks like that alot of people are sticking with the 250's I dont know Im going 400's this time around. I think the the lower Kelvin is going to penatrate more then anything, where a higher kelvin will only go so far. Looking at the 150's in our LFs the light does go down pretty good. SO lord knows. Great I'm going to be ending up buying that fixture to test out only to go buy another one ya nigel your right here I go again....................