My First MH DIY Pic - soon..but....

[reeflobang]

Went down to Victron today and bought a 150W DE MH set from them. S$156 nett with a 10K BLV Bulb. Was told by the boss that BLV rep told him that as this bulb is specially for marine tank, its UV-protected though its DE type. Anyone able to verify this?

Will also be trying to reach BLV Germany meanwhile but its the holiday season, not sure if I can get them... Don't want to risk meanwhile.....

Anyway, PIC below:

[Seawater]

Bought exactly the same as u. Would like to know how you plan to put them on your tank as I am still struck with no proper fixtures to hold them.

[jason]

Went down to Victron today and bought a 150W DE MH set from them. S$156 nett with a 10K BLV Bulb. Was told by the boss that BLV rep told him that as this bulb is specially for marine tank, its UV-protected though its DE type. Anyone able to verify this?

Will also be trying to reach BLV Germany meanwhile but its the holiday season, not sure if I can get them... Don't want to risk meanwhile.....

Anyway, PIC below:

I am using the same fixture as you...... for few months..... no problem.... you can use it now.....

[reeflobang]

Bought exactly the same as u. Would like to know how you plan to put them on your tank as I am still struck with no proper fixtures to hold them.

As attached or just hang the box... still thinking about it.

May also source for aluminium FL casing to try to squeeze the fixture in.... but the casing will need to have enough depth and some parts need to be removed as well.

[alanseah]

Well maybe you can go DIY something like this.. a holder to hold your MH...

[CalciumReef]

If making a hood just screw it on the top cover and cut holes by the side for fans

[Clownfish]

If making a hood just screw it on the top cover and cut holes by the side for fans

cool~~

well, if making a hood is diff, y not just hang it up using brackets attached to a wall?

[alanseah]

well not everyone like to drill hole on the wall ma...

so no choice lor have to use a hood..

[CalciumReef]

But its gonna be bulky,hot and heavy

[alanseah]

well depend ma...

your hood cover it an enclose one.. of coz heavy and hot...

anyway... calciumreef.. you tank big huh.. use till 3 MH..

I was wondering.. if one MH 250W can cover a 3 feet tank..?

[CalciumReef]

That pic is for reference for ppl who want to diy...if not i can customise casings for your...

[alanseah]

ok..

but u forget to ask my question..

3 feet use one MH in the centre will do be able to cover the whole tank right..???

sorry reeflobang use your topic for awhile only..

[CalciumReef]

By right is one Mh per 2ft one...but if you use 250w its ok....for tank of normal depth.Pic is 3ft tank with 250w BLV 10k

[alanseah]

o me thinking of getting 20K bulb instead.. cause it's more blue...

and easy for the eye

[CalciumReef]

That will be radium then...but low on par...

[alanseah]

what do u mean low on par..??

what is par..?

thanx

[CalciumReef]

PAR = Photosynthetic Available Radiation

[ah^siao]

wad's that?

[reeflobang]

Well maybe you can go DIY something like this.. a holder to hold your MH...

Thanks for the ideas and offers to help out. Still cranking te brain juice. Got a friend who happen to have two brothers - one is a carpenter and the other owns a precision metal enginnering company.... also trying to see if they can help......

[hoppinghippos]

That will be radium then...but low on par...

Can anyone confirm this?? really not the same?

[alanseah]

well from what i know...

20K bulb is more for deep tank...

and it's not as good for photo as 10k bulb..

the higher the kelvin does not mean it is better

6500 or 10K is still a better choice.

[Clownfish]

whether to use 6,500K, 10KK or 20KK realli hav to depend on wat type of corals u keep....

corals that r found deeper in the reef will like 20KK more while most corals, which r found nearer to the surface wld do betta with 6K5 or 10KK....

another way to look at it is that 20KK does not require actinic but will lose an edge in intensity to 6k5/10kk....

if u stil got space to supplement actinic, go for 10kk+actinic...

else, 20kk shld be sufficient for most corals, but due to intensity problem, it shld be hanged nearer to the tank surface (ard 6 inches for a 150W)

[triggerpuff]

may I know what's the normal wattage for a 10KK actinic?

Is it availabe at Victron or at any normal light shop & roughly how much?

I am currently using 2 X 150W 10K MHs and find that it is slightly yellowish - not too pleasing on the eye and hope to add on an actinic soon.

thks !!

[reeflobang]

Hi guys

My buddy asked his carpenter brother for help and this is the end result... small pic as it was sent via MMS. Yeah!!!

Will decide later to add fan or not or just drill air vents.... depends on laziness level...

[alanseah]

hmm in that case you will have the top tank totally cover right..

then no air exchange already leh... and will heat up your tank even more..