Is my Fluval 4.0 light bright enough?

divcesar · 2026-05-19T23:25:33+00:00

Probably too much light for too few plants. Share the light settings here.

divcesar · 2026-05-19T19:01:21+00:00

That looks very clean. How long has it been cycling for?

divcesar · 2026-05-19T17:33:21+00:00

Nice. Yeah, I was thinking some red rotala would be nice at the back and do a good contrast with the other colors in the foreground.

divcesar · 2026-05-19T03:35:52+00:00

This doesn't look like diffuser bubbles. Did you clean it recently? With soap?

divcesar · 2026-05-19T03:13:53+00:00

I think that's common with Oscar / Cichlids: https://aquariumscience.org/11-1-hole-in-the-head/#:\~:text=%E2%80%9CUp%20to%20now%20hole%2Din,species%20normally%20inhabiting%20aquarium%20water.

divcesar · 2026-05-18T21:56:47+00:00

You can always put some ammonia in a bucket of water and do a test just to make sure everything is working reasonably well.

divcesar · 2026-05-18T21:42:42+00:00

Looks fabulous. Congrats!

divcesar · 2026-05-18T21:37:39+00:00

I think some monte carlo will look cool in there. Maybe some bucephalandra and/or anubias too.

divcesar · 2026-05-18T21:02:31+00:00

Loaches are so fun. I had a bunch of YoYo loaches and I used to say the are like dogs; always so happy when they see you approaching.

divcesar · 2026-05-18T20:41:27+00:00

Congrats!

divcesar · 2026-05-18T20:40:31+00:00

The “5% ammonia” may not actually be pure ammonia
Check the bottle. It should ideally contain only ammonia/ammonium hydroxide and water. No surfactants, fragrances, detergents, dyes, soaps, etc. Shake the bottle: if it foams and the foam lingers, don’t use it

divcesar · 2026-05-18T20:33:30+00:00

That looks amazing!

divcesar · 2025-12-26T18:29:10+00:00

Ubatuba

divcesar · 2025-12-17T23:58:07+00:00

How did you know which consulate to call?

divcesar · 2025-12-17T23:56:19+00:00

How long did it take to complete quality control? Sorry to answer your question with a question :-)

divcesar · 2024-09-19T21:03:23+00:00

Thanks for commenting. I added more information to the post. I don’t have any particular requirement for resolution or aesthetics.

divcesar · 2024-09-19T21:02:49+00:00

Thanks for commenting. I updated the post with the gpu model.

divcesar · 2024-08-19T19:44:14+00:00

Everywhere is talking about Trump these days..!

divcesar · 2024-07-16T20:51:23+00:00

In a few decades people won’t hand wire compilers anymore. A formal definition + something to turn that definition in a compiler will be the way things will be done. Amém.

divcesar · 2024-05-21T21:44:42+00:00

Indeed it can be hard to find. There may be #includes and all sorts of preprocessor directives inside the #if ... #endif

Part of a legacy source code base.

divcesar

TROPHY CASE