I would love some input on my refugium lighting schedule.



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May 23, 2021
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My tank is a year old (almost) and it is a Nano tank. 13.5 gallon tank.

I thought it would be cool to add some chaeto in the back and get a simple light for it and put it on a timer. My primary reason for having a refugium was to populate it with pods. Nutrient control was secondary.

^^^^ This light is being used.

So if I understand this correctly, a refugium makes pH go up? So can algae in the tank? I have some green hair algae but not an overwhelming but enough to be embarrassed about it. My pH has jumped from 8.0 to 8.4 in about a week. Refugium has only been going for less than week.

My main display light goes on at 9 AM and turns off at 7 PM with a 1 hour ramp up/down time. The refugium light turns on at 7:01 PM and turns off at 5:00 AM.

Hydra 32 light settings :

UV : 10%
Violet : 11%
Royal Blue : 38%
Blue : 28%
Green : 0%
Dark Red : 0%
Moon Light : 0%
Cool White : 0%

(light is also 10.5 " from the water)

pH - 8.4
Ammonia - 0 ppm
Nitrite - 0 ppm
Nitrate - 0 - 2 ppm

Should I decrease the time my refugium light is on? I am prepared for the intense negative criticism.

I have only been into the hobby for 2+ years now. I do maintenance with my bosses tank at work cause nobody would if I didn't. That is how I got into it. Unfortunately I do not have space for a big tank and thought a nano tank would be cool. Bleh. Whoopsie! Didn't understand that smaller tanks are harder than big ones!

Picture of the refugium light and pic of my garbage nano tank.


This pic was from a couple weeks ago^^^^

Also try and have a happy Thanksgiving.


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