Mars Aqua Chinese LED review (Ebay)

it would be too close to the water ..should be at least 8 to 10 inches above...for better coverage ...also how would you get in to do maintenance..

Ok, thanks for clarifying. That rules this bad boy out. Tough to pick a sub $200 light that is mounted on a tank. Every one is rated 4.5/5 on Amazon. Lol!
 
I've grown bored with the stock spectrum on the Mars Aqua lights and would like to change out some diodes. Looking for some advice and criticisms on my planned layout. Top pic is original layout of Mars Aqua and bottom pic is of my proposed changes. To sum it up, I am changing most of the 460nm blues to 450nm and changing the lower Kelvin whites to 14k. I am also adding some UV, Cyan, and 420nm purple.
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Following. I'm going to swap out some as well.

I know I want to get rid of most of the warm whites, and cut the red and green in half.

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thats almost what i did ..i took out the 3500k on the end and put in 10000k and took out the reds and put in 420nm..now going to take out greens and put in 395 nm ..thought the 420 nm was going to be more on the purple side but more blue to me..lol...
 
What percentage are you running your lights at? Is there noticeable transparency on the tentacles under white light?

I'd been running them pretty high, but have since backed off a bit, as some corals on higher rocks were beginning to bleach a bit - including a birdsnest.

There's no transparency to the torch at all - deep brown tentacles with an orange-green sheen, orange glow under the blues, and green tips.

~Bruce
 
small question will 2x165w light will be enough for tank 30x30x20? Have them already but want to change few lens before I hang them over my tank. Another question is would they produce enough light without lenses
 
small question will 2x165w light will be enough for tank 30x30x20? Have them already but want to change few lens before I hang them over my tank. Another question is would they produce enough light without lenses

each light will cover a 24x24 area. so you will have some shadowing on the ends but that's fine for lower light corals. or nonphoto corals... as far as producing enough light without the optics on, yes more then enough. your tank is only 20" high. without the optics will also help with covering the sides of the tank better since itll have better coverage. so with your tank being 30x30 your kinda forced to take them off anyway to try to get max coverage..i would suggest looking into a T5 retro kit and pairing it with the 165s and youll be good to go...
 
has anyone run the mars aqua with t5 retrofits. I am looking to add some t5 but I don't have a canopy so I am looking for ideas on ways of mounting them.
 
I have a 4x2x2 tank, would one 300w be enough if I only kept low light or no corals around the edges? The only problem with two 165w is that its much harder to hang....I have metal light hanging stands one on each end of the tank so the 300w would fit perfectly
 
Okay,I received my two 165 watt units.I am very pleased with the quality of these .They were well packaged,and work perfectly on arrival.They aren't as nice as my Max Spec,obviously,however each unit works out to just over 100.00 bucks in Canadian funds,delivered to my door,in like 43 hours of placing my order,(that almost sounds impossible)...I know this sounds fishy but you can't buy anything in Canada for 100 dollars anymore,if you include sales tax(okay you can buy a loaf of one day old bread in Canada for under 100 dollars...still)so this is a no brainer to buy these.

Where did you get that loaf! Is the sale still on?

2 fixtures is a completely different ball game than just 1 with the optics removed....clearly if I see a problem with my set up, I'll consider moving them....

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Hi guys, what do you recommend for a 93 cube ? It's 30 x 30 x 24H. My existing fixture is a diy led that I have mounted diagonally in canopy (only way it would fit), and is around 8" from the surface. Its on a dawn to dusk program on my Reef Angel controller (PWM). It worked pretty decently as my overflow is in the back corner and I was able to arrange Rockwork to take advantage. Had a mishap after a power outage and the controller shutdown the relays powering my hood fans and stuck my heater on. I know.... sounds like the wife... anyway, the moisture shorted the the wiring somewhere halfway and now only my right side lights. I'll get to fixing the light, but meanwhile I'm leaving on a trip in 10 days and I need to get lighting. The 300W might fit, but it will be tight .. I could put 1 165w unit in centered diagonally or 2 side by side. Will one unit with optics removed, provide a big enough footprint?

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I ended up ordering 2 165w units. Easier to go side by side instead of trying to fit the 300 diagonally.

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Hello.
I bought 300w version from ebay.
I am now waiting for delivery.
I want to buy quieter Fans.
Can I put inside three 120mm fans instead of 80mm?
sorry for my english
 
I just ordered two of the 165 units today. Has anyone attached two together befor hanging them? Do you have any pictures of how you mounted them? I need to evenly space them over a 120 gallon tank. Thanks!
 
I would think efficient quiet 80mm fans would be your only option. You would need to modify the unit internally to fit the bigger fans. Quiet fans are readily available.

Most guys mount their LEDs on some kind of conduit over their tanks and I think that looks the nicest. Did you get the units that have daisy chain capability? Then it should be pretty easy to plug them into eachother.


I do have a new question I just got an old school unit in a trade, it's got 10k or 14k whites and Royal Blues. It's the majority blues so I get a pretty good 20k look to it but one of the drivers doesn't have full power. It turns on but looks pretty dim on the whites and when I take it apart and switch drivers they turn up super bright.

My question is: is it worth my time to fix this unit with how old it is and without full spectrum? I want to use it for sps. Should I get a new dimming driver?
 

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My question is: is it worth my time to fix this unit with how old it is and without full spectrum? I want to use it for sps. Should I get a new dimming driver?

Yes, the white LED provides "full" spectrum, the red and green in these fixture are not important nor effective.
 
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