I'm getting more involved in my planted tank and I've been reading everything for a few weeks now. Back in the old days, we talked about watts/gallon. Next up was Lumens. Now it is PAR. I understand the technical differences but I still don't know if my tank is a low light or medium light tank...

One thing that is bugging me is determining how strong a light really is. What PAR levels do you guys find correspond to low, medium, and high light? High level being able to grow high light plants and also get the full coloration to show (Reds, oranges, etc.). At what point does CO2 become...

I bought a twinstar 600SA recently, and was wondering why the light sits a good 4 inches from the top of the tank. I lowered it to 2 inches and wondered, aside from the light being brighter for the plants, if there would be any negative effects. Is there a reason why the Twinstar lights are...

So I'm a bit confused and hoping someone can give/link me the exact data I need or confirm an accurate formula to get the par info I need from par taken on a longer light of that model and/or deeper depth. I'd read that using LED # does not make an accurate equation to determine par?? Is this...

Hello folks, Planning in the next few months to do my first high tech tank build. Just because I am a gluten for punishment I am also trying to make my lighting system meet a specific aesthetic quality. Specifically I am going to have my lights be suspended about 2 feet above the tank (maybe a...

Hello, I have a few questions I want to ask regarding lighting in "low tech" aquariums. In a situation where you use no CO2 or ferts (I guess I can use ferts I just dont know how safe that would be since I have newts) is low light (15-30par) the only safe choice? I wanted around 50 par but it...

I have a Current LED Pro+ light and at max power (100s all around) it only produces about 60-75 par throughout my 22" long tank. The light is about 8" above the water's surface, and the water's depth varies from 7" to 10". I for some reason thought it was producing much more par. My question...

Just tested my 18" Current Satellite Plus Pro using an Apogee MQ-510 on my 45P. The fixture has fixed legs, meaning the minimum distance to water is 1". *All measurements are from the bottom of the LED array to the top of the submerged sensor.* 100% power, 1" from fixture's midline: 1”...

Just tested my Twinstar 450ES using an Apogee MQ-510 on my 45P. The fixture has fixed legs, meaning the minimum distance to water is 3". *All measurements are from the bottom of the LED array to the top of the submerged sensor.* 100% power, 0" from fixture's midline: 3” depth: 275PAR 9”...

Hi all, Just tested my Twinstar 600S using an Apogee MQ-510 on my 60-P. I was going to make a fancy chart, but the density of plants in my tank aren't ideal for consistent depth measurements... so this is what I can give you. The fixture has fixed legs, meaning the minimum distance to water...

Got my Seneye Reef Monitor today, recorded every combination of settings I can think off in increments of 10%. Recorded PAR, Lux, Kelvin, and PUR Product: https://sbreeflights.com/sbox-fw-plant-lights/21-basic-fresh-water-plant-led-light.html PAR Data...

My tank has pressurised CO2 and EI dosing. Any ideas if substrate PAR of 40 and surface PAR 150 are enough for this plant? Any suggestions otherwise? Thanks :)

Is 150PAR at the top of a tank and 40PAR at the bottom enough light for EI dosing? I want to start with EI as it seems to provide a good balance of nutrients and is way cheaper than commercial solution. I use flourish excel as a source of carbon for my plants at the moment, would EI dosing be...

Hey, would 140-150 PAR at the top of a tank and 40 PAR at the bottom of a tank be enough to satisfy Cyperus Helferi's light requirements? Thanks in advance :)

I'm looking into turning my 30L nano planted tank into a high tech with pressurised CO2 and EI dosing. At the moment I have a Dennerle power LED 5.0 lighting the tank. Would this light be considered high light? I've looked online and cannot find any info about PAR ratings, I'm concerned that the...

Hi, Looking for a Current USA Satellite Freshwater LED Plus light. Either the 36-48" or the 48-60" would be great! Let me know what you have and how much you'd like for it. Thanks

I'm going to be setting up a 65 gallon tank soon with two of the new Finnex SE fixtures. The tank is 24" tall. I was wondering what level of light these two fixtures would give me. I'm not interested in growing a carpet and so am not too concerned with the level of light at substrate level. Most...

Does anyone has PAR data for Life-Glo Fluorescent Bulb 15 Watt 18"? I have a 10g freshwater setup with 2" substrate in the front and 3" at the back. I have this bulb in the Aqueon Fluorescent Deluxe Full Aquarium Hood.

Probably a dumb question but I was not able to get a straight answer from the reading, so here I am. Simply put, is par the same for freshwater plants and saltwater corals? I am looking at multiple different fixtures for my 150 gallon planted tank and have seen the Current USA Orbit Marine PRO...

Hello all I have a 150 standard (28" deep) with Rotala Indica, Amazon Swords, Wisteria, Anubias Nana, and Jungle Val. It seems like a low tech tank. It is on an automatic 50 gal water change every 3 weeks. My current lighting setup is a single 9000lm Beamswork aquarium light (10000k). Prior to...