ALL EXPERIENCED SW PPL's HELP!! 70W MH on a 40g????

would my 70W MH be enough for a 40g?
dims are
20" tal by 36" wide by 15" deep but 4" are taken up by a built in sump on the back of the tank! so theirs only bout 11" of display depth

plz help i might get this tank for dirt cheap and am considering making this into my SW tank lol its bigger and has more ZAZ to it!! LOL

I think it will be WAY MORE than enough! That's some serious lighting there.

yes that would be good. you could do about any coral you want. jump on it.

Alk, I see you are slowly growing in size on that SW tank. Pretty soon your post will be, what lighting for a 125???

LOL im kinda already looking at 250W MH fixtures for my 100g and its not even a SW tank YET

LOL
i get a lil ansy:)
but seriously? 70W for that depth of water is ok???

Dude, that's some serious lighting. Like Chevy350 said, you will be able to put almost anything in there!

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lol i know how serious it is but i mean iv inly seen 70W's on nano reefs like 20Ls and 20Hs
basically small tanks!
but if you guys say so........lol i just wanna be sure i have enuff light in that depth for corals!
MAINLY MY CLAM:)

I don't think that is enough you could do zoas maybe. Just depends what you want to do coral wise. I have a 120 with 500w mh (2 250s) and 260 w compacts my 40 has a 150w mh and 2 39w t5. My 12 gallon nano has 64w. I would urge not doing a clam unless it was on top of a rock and directly under the light. If you do end up getting it make sure you either know how old the bulb is and change it if necessary cause the par makes a huge difference.

Yea 70w might not b enough for the clam unless u put him up a lil higher. I have a 175w on my 40 breeder frag tank with a 20k bulb. Everything was great!

yea i know about the whole par thing!!! i just wasnt really sure bout the hight of the tank!
i know that clams do very well in shallow reef tanks ESPECIALLY with MHs!!! i had a 20L(shallow) i know of 100s off ppl using these 70w MH over em! and they look SICK!!!!! very awsome lil set ups! i already have the tank and the light!!!(MH and AIO 40g) but i think imm stick with a 20L ill have to get another one but yea starting to lean more to the 20. becuz its more shallow and the clam will get more par and intensity from the light!

or what do you guys think bout using the MH and a t5 fixture? like a retro fit i can fit into a canopy?

Go 4 it.. only thing u might have 2 watch out 4 is the heat.

yea.....................and i dont really have the $$ to buy one of them lil fans fo light fixtures!....unless i find one for dirt cheap or free!!!!
ill see what happens!

only upside to this is i have time to collect items all over again for my SW tank so when im ready ill have everything i need:)

you dont need a fancy fan, just get a reg one from walmart and let it run near the tank.

lol thats what i was thinking!! get a lil desk fan or somthin small and have it behind the tank facing upwards towards the light fixture.
how far of a distance should it be from the light though?

I use 150 watt Mh on my 40 breeder and to be honest I wouldn't go with anything less. not sure why some people here think 70 watt Mh is plenty.
as far as heat get yourself a small clip on fan from walmart they work really well.

cwhip wrote:

I not sure why some people here think 70 watt Mh is plenty.
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If you have never been told or tought then how would you know? This is what the forum is all about. Learning and obtaining info. Any help is much apperciated.

cwhip wrote:

I use 150 watt Mh on my 40 breeder and to be honest I wouldn't go with anything less. not sure why some people here think 70 watt Mh is plenty.
as far as heat get yourself a small clip on fan from walmart they work really well.

thanks!!! i knew for sure that a 70w wouldnt be enough...but my tank isnt a 40 breeder
yeah but im goin a diff rout now! i still have the tank and light but my space doesnt allow for that size tank....but i still got somthin up my sleeve;)!


just be watchin me