r/Aquariums • u/Awimpymuffin • Jul 05 '21

Grow lights for 75 gallon? Help/Advice

Just got a 75, upgrading from my 29 gallon. Wanting to do everything right but I'm struggling to find information on a good light to get through the 21" of water. What do you guys use? I'm not looking for deep reds, but would preferably like some areas of my tank carpeted. I was thinking about getting a couple spotlight style lights and then just running an LED hood (which I dont have any info on so if plants grow under it great lol) Thanks in advance for any help/advice

Edit: I have a plant list now. Will be wanting to plant. I will add CO2 at some point but want to make sure I have a decent light first

  • Ludwigia Repens
  • Cryptocoryne Wendtii
  • Staurogyne Repens
  • Hygrophila Polysperma "Sunset"
  • Vallisneria
  • Bacopa Caroliniana (still a maybe)
  • Java Fern
  • Hygrophila Angustifolia (Willow Hygro)
  • Dwarf Sagittaria Subulata
  • Hygropholia
  • Stargrass
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u/Awimpymuffin Jul 05 '21

Was thinking of getting this one https://www.amazon.ca/Fluval-Aquasky-Bluetooth-Aquarium-Light/dp/B07BBSKHRZ/ref=sr_1_1?dchild=1&keywords=Fluval%2BAquasky&qid=1625447676&s=pet-supplies&sr=1-1&th=1 would it be enough for the depth?

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u/Wakenbake585 Jul 05 '21

Aquasky definitely isn't going to grow any carpet plants. It's a low/medium light at best but at 21" depth, it's going to be low. Fluval Planted 3.0 is the higher output light they have but much more expensive.

Some people use full spectrum flood lights. Would be a much cheaper option.

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u/Awimpymuffin Jul 05 '21

Do you think something like this would work, maybe get a pack of them running would that work? I also noticed that the lights have 2 UV LED's, would you know if that can hurt fish?

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u/Wakenbake585 Jul 05 '21

I'm not sure how those would work tbh, your tank would also be pink/red.

Something more like this, 6000k option.

Bulbs around 5500-6500k are same spectrum as day light.

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u/Awimpymuffin Jul 05 '21

Do you have any idea how many I would run?

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u/Wakenbake585 Jul 05 '21

I don't. I would start with two but may end up needing 3 depending on light dispersion.

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u/Awimpymuffin Jul 05 '21

Thanks for your time and help. I also have a LED hood that came with the tank, with absolutely no information about it that I may run as well at night because it has some nice blue lighting. I'll be getting smart dimmer/timers for those lights to make them ramp up and down so it doesnt shock the fish with violent changes. Again thanks for your help

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u/Wakenbake585 Jul 05 '21

No doubt. Good luck!