Thanks. I am honestly impressed, never considered this could not be algae.

Light wise, I’ve been using the night light (blue lights) throughout the day for a week, it looks like it halted growth but I’m not sure.

The nutrient input is probably over feeding. I honestly don’t even think I give my fish too much food, just a pinch in the morning, but they seem not interested in the food and simply don’t eat it all, so most sink down and stay there. So maybe I should change the food type? Not sure. Also definitely feed less.

Is this harmful for the fish? I just had 3 little one born tonight and I’m worried about their health and all other fish too.

I’ve been thinking to do a remake in my tank especially the substrate that I don’t like so much, want to replace with sand, so I could actually use the opportunity and completely empty the tank except for the fish and water, get a better filter, leave it like that for a week and then start over. Is this a good idea?

Thanks all for all your insights!

Seems like this topic got lots of attention over night, I really appreciate it!

It looks like there’s really no solution for what I’m looking for, even if I’d move to windows I don’t think I’d get what I want. Apparently only Apple has that but I’m not sure, never owned an apple device.

Seems like this would be a cool project to work on, cross platform cross device parental control with Linux as a first class citizen.

She’s using a Samsung android phone with Family Link, it’s meh but does it’s job. I’m looking into limiting screen time more than content restrictions, and having the total screen time across all devices in a centralised service is very much what I’m looking for.

This is very cool

My daughter has ADHD and if we don’t limit her screen time she can literally spend the whole day sitting and watching Minecraft videos, and then later she gets very grumpy, so yeah while I absolutely hate having to do it, it’s more for her own health than content exposure (not blocking websites and app installation other than by age recommendation).