UV sterilizers DO NOT “clean” water, they sterilize it 

[lukesgoldies]

I guess this is where my chemical engineering degree comes in handy with all this. We were always taught that mass into the system minus accumulation equals mass out of the system. The mass into the system is the fish feed I’m throwing in there all day, the accumulation is the growth of fish in the tank, and the mass out is the byproducts the fish poop out, and if I want to remove those byproducts from the system and ensure they don’t also accumulate then they need to be physically removed somehow. One way of doing that is physical removal with water changes, another way is converting the mass into algae matter and filtering that algae matter out and removing the byproducts that way. Simply killing the algae and leaving it within the system does not substitute for a method of byproduct removal. #algae #fish #goldfish #chemicalengineering

[yenkiwong]

He literally does this as a living, i dont think people need to tell him what to do

[kurtrsenjazz]

Bro that has got to be some fire fertilizer

[Dylan_Otto]

I guess people just forgot that if you kill a number of things, you still have to deal with the corpses

[RileyPierce_]

This was a good informational video for those guys, nice looking goldfish, too.

[blue.flowers]

The plants around your house must love you. Dumbing all that green water in the grass and garden for them. Watch those spots grow 3 times as fast next year. Lol.

[jyvaineorchids]

A system that don't need water change... This is amazing 💖💖💖💖

[dreep_]

People just can't comprehend that we can not make matter disappear, we can only transfer them. This is one of the most basic piece of information we learn.

[Anonymous]

I have a 55 gallon community tank that I have not done a water change in 5 months. I’m still new to planted aquariums but my favorite plants are floating plants like duckweed and water lettuce super amazing cleans water very well and doubles the population every 2-3 weeks so you can make fish food from it or even sell it.

[Marveldevil]

So instead of changing water, now we're changing algae? 🤔, I mean we are not adding it back but letting new algae grow?

[darkiler]

Here in Japan they use freshwater clam “シジミ->Shijimi” to clean the algae, you could put some clam in the bucket and they will eat the algae, no chemical and is more natural

[StephenFranco-ok]

Well, a couple ways I could see you finding effective nutrient export from your grow out tubs is;
1.) You could try raising daphnia/monia in a separate tub and cycle your green water algae from goldfish to daphnia back to goldfish and repeat. Daphnia make great food for fish of all ages and their natural food is green water algae. You can harvest the daphnia and feed them live to your fish or store them in the freezer.
2.) Make an Algae Turf Scrubber to grow green hair algae and just manually harvest some of the green hair algae every couple of weeks to remove the excess nutrients from your system. Lots of reef fish keepers use this method to keep their water pristine without having to do water changes. You can find lots of DIY algae turf scrubber videos on Youtube, relatively simple to make. Just whatever you do don’t buy one, they’re ridiculously priced for the amount of nutrients they are able to remove from a system.
Anyhow, hope you found this information helpful. Best of luck with your business!

[alexcine]

thank you for not being completely lost. Another person that makes me belive there are people who havent lost their brain

[xamdrawoh]

I have a horrendous green algae problem in my tank right now. Thank you so much for telling me about this. I’m gonna try and see if it works.

[futureturman]

It’s a shame while people can think that they’re giving you advice when they’re not really helping at all

[givadiva]

I’m a chemical engineering student, I could IMMEDIATELY tell you were a chemical engineer by how you talked about your tank as a system and implying that this is in fact a separation problem

[robertreed]

Keep it up! That algae water you're pouring out is an EXCELLENT fertilizer for your lawn and garden!

[failure_management]

Never try to educate Luke when it comes to fish care, he will educate you instead 😅

[BrookeCira]

I have been watching your channel for at least 3 years and I love how you care for your fish and all the educational videos you make. You’ve inspired me to create my own ROOM of stock tanks filled with ranchu and oranda goldfish! I have just created this room last week and wanted to know if it was a bad idea to keep my first two fish in a 27 gallon stock tank. I have a black oranda golfish who I first put in a ten gallon two weeks ago ( I knew I had to move it to a bigger tank ) but today I moved it to that 27 gallon. I want to ask if that is too small for another goldfish because you always post about how the best type of stimulation for a fish is a friend. I just want to know if that 27 gal tank is too small and any comment about what I’m doing. Thank you for always being so kind about teaching beginners like me the way that you do instead of yelling and bashing down on people. ❤❤❤ amazing job in your channel and I hope to hear back from you soon.

[Null_AF]

*Non-working ppl who think they know what to do bc a friend or vid told them*

VS

A man who does this job for years and knows what he is doing