nightime

So I’m trying to figure out what’s causing this one torch heads mouth to open up like this only when the lights are off. I’ve had this torch for nearly 2 years and it just started happening. Parameters are: Nitrate- 15 Phosphate-.16 Alk-8.9 Cal-440 Mag-1450 Salinity-1.026 Only difference that...

What are some of the best Tips and tricks to viewing your tank at night? I’m asking for more of the “no lights, what’s creeping around the aquarium at night” aspect. *I’ve tried a flashlight covered up with red electrical tape, it sort of worked. I still think it was too bright. Let me know if...