cosmicrookie

Not sure what these darker stripes are. They look like submerged timber og logs

How does the nitrogen cycle “survive” large or even 100% water changes? I don’t want to stir up a discussion about what is best, and I understand that we all live in different places were conditions and water quality is different and also that we all choose to keep our fish differently because we thinks its the best for them. Therefore I am simply looking for an explanation on how the idea of regular huge water changes works in practice.

I see recommendations of very large water changes in goldfishkeeping, especially in bare button setups and grooming setups. This is very practical, for systems that are heavily stocked. I also see them have filters in them, and this I can’t really understand, unless they are there only for mechanical filtration.

What stirred up this thought, came from a recent experience where I lost some fish. I had a tub with 10 fry in a tub (90 lit – 20 gal) with fresh tap water (no chlorine or chloramine in our systems here). I added a cycled filter from my main tank. I then added the fry (after acclimatizing them slowly) and I expected this to work well. The fish got a very serious fungal infection within 3-4 days, and I lost most of them.

My theory of what went wrong is, that the cycled filter did not have access to ammonia and nitrite to maintain the bacteria balance, and therefore crashed. The breeder that I got them from, told me that he changes the water daily, but he had approximately 100 fry in a tub that was the same size, so I assumed that a cycled filter would have not issue with keeping up. I fed them 3-4 times a day but very moderate quantities so I did not expect the system to crash like this

So my question is, do very large water changes work, if they are not made often? Don’t larger water changes crash or almost crash the filter in systems that reliant on biological filters? In systems that are reliant on biological filtration, is partial water change not better, to maintain a more balanced filtration performance?

Today, i turned on my Mint pc and it wouldn't let me type in a passpowrd. Even the mouse was not reacting.

So i rebooted, got a massive text wall that mentioned something about not syncing

When i rebooted again, it wouldn't start up only a few rotations with the fans and then it restarts and repeats this loop

I assume that this is a hardware issue but what should i be looking into and how do i make the recovery as smooth as possible?

34°22'25.3"S 137°40'23.6"E

I was randomly browsing Google Earth and had drifted into Hungary when I noticed that many plots there, are elongated. They have a short front towards a road, where a house or structure usually is located, but then extend a pretty long way behind that!

Hidden Beach is not quite so hidden - listed as a tourist attraction on google:
https://maps.app.goo.gl/2LvWzMa5iaYtYiS2A

Interestingly, google has the location of quite a lot of hidden beaches!

Summer residences close to Copenhagen in Denmark. The hedges are angled, from 180cm to 80 cm, securing privacy and optimal light access for plants close to the tip of the "slices".

All homes have access to electricity, water, sewage and water. The houses must be less than 50 square meters, and you can only live there between April 1st to October 1st. Outside this period you can only stay there on weekends.

https://www.rundtidanmark.dk/broendby-haveby-runde-haver/
https://da.wikipedia.org/wiki/Br%C3%B8ndby_Haveby