The keyword for this is "MODERATION"
Too much of something is not always good. So just give your lovely wife those healthy foods everyday. Don't think too much.

Google and you shall find.. 

Study shows not the type of fish, but where the fish comes from.. but of course, fish who eat fish (carnivorous) usually have higher mercury levels as they are concentrated.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4334092/

https://www.researchgate.net/publication/27...nsular_Malaysia

I have 2 young kids and my wife are pregnant with another one. My wife have been frequently advise to eat more fish especially those with high Omega 3 content as Omega 3 are good for brain development. It also have the same benefits for young child and also benefit adult in one way or another.

However, I realize that there is also the concern of mercury content in fish especially popular high Omega 3 content fish such as Tuna, Salmon and etc. To deal with that, I am thinking of eating plant based Omega 3 & local freshwater fish with lower Omega 3 content fish (not sure how low) but recently I heard that freshwater fish actually have higher mercury content that can affect brain development. I am confuse  . Do you guys have any info about this?

Other than that, I also wanted to show my kids the photo of those fish before it is cooked & served on a plate as I noticed many youngster today don't even know what kind of fish that they're eating. (Including myself, I only know few but not really sure how to differentiate it). I don't want my kids to be like those kids in developed country like USA & etc that don't even realize the foods that they eat especially meat are living being that have head, feet, name and etc before being served as food.

And being a Chinese and living in Malaysia, I also want to know and tell my kids the name of those fish in Chinese, Malay and etc. Hope you guys have some info about this.

Not only pregnant.. if lifetime eat mercury tainted fish.. in kids and adults  will lead to future complications..

Unless you avoid seafood altogether..

I have 2 young kids and my wife are pregnant with another one. My wife have been frequently advise to eat more fish especially those with high Omega 3 content as Omega 3 are good for brain development. It also have the same benefits for young child and also benefit adult in one way or another.

However, I realize that there is also the concern of mercury content in fish especially popular high Omega 3 content fish such as Tuna, Salmon and etc. To deal with that, I am thinking of eating plant based Omega 3 & local freshwater fish with lower Omega 3 content fish (not sure how low) but recently I heard that freshwater fish actually have higher mercury content that can affect brain development. I am confuse  . Do you guys have any info about this?

Other than that, I also wanted to show my kids the photo of those fish before it is cooked & served on a plate as I noticed many youngster today don't even know what kind of fish that they're eating. (Including myself, I only know few but not really sure how to differentiate it). I don't want my kids to be like those kids in developed country like USA & etc that don't even realize the foods that they eat especially meat are living being that have head, feet, name and etc before being served as food.

And being a Chinese and living in Malaysia, I also want to know and tell my kids the name of those fish in Chinese, Malay and etc. Hope you guys have some info about this.

deswai some ppl choose vegan

i guess one needs to eat a lot of fish to get mercury poisoning...BTW, don't drink water also cos i heard got a lot of female hormones in our water

Not really..
Depends on lifestyle..

Anyway.. not only Mercury.. but lead, arsenic, cadmium.. is also a concern..

Tilapia I didn't mention cause it's not worth mentioning. Cod and salmon not available in msian Waters . Cobia, parang, gt all is game fish. Mekong is game fish.

Yeah its kind true.

I don't have the stats with me, but I saw one video, even Norweigian Salmon is tainted with mercury.

So whatever gain u have on Omega3 is set off by the sea pollution.

Apa susah....buy food supplement lah.

Then you should probably start learning the type of fish you can commonly find in supermarket. When you are shopping for grocery, head to seafood section there's fish with their name and price shown there. Market like giant, Tesco or Aeon should have listed them in BM & English, if either then Google it.

Also nowadays has website for online ordering fish that Chinese commonly eat like 非洲鱼, 白须公, and etcetera. Chinese restaurants mostly don't list them on menu so you have to ask them to know. It's much more easier to remember the fish you usually eat than just memorize and read about them on the web.

No offense, I am one of those guys that disagree with vegan. There is a reason why human are omnivores and not herbivores.

I have 2 young kids and my wife are pregnant with another one. My wife have been frequently advise to eat more fish especially those with high Omega 3 content as Omega 3 are good for brain development. It also have the same benefits for young child and also benefit adult in one way or another.

However, I realize that there is also the concern of mercury content in fish especially popular high Omega 3 content fish such as Tuna, Salmon and etc. To deal with that, I am thinking of eating plant based Omega 3 & local freshwater fish with lower Omega 3 content fish (not sure how low) but recently I heard that freshwater fish actually have higher mercury content that can affect brain development. I am confuse  . Do you guys have any info about this?

Other than that, I also wanted to show my kids the photo of those fish before it is cooked & served on a plate as I noticed many youngster today don't even know what kind of fish that they're eating. (Including myself, I only know few but not really sure how to differentiate it). I don't want my kids to be like those kids in developed country like USA & etc that don't even realize the foods that they eat especially meat are living being that have head, feet, name and etc before being served as food.

And being a Chinese and living in Malaysia, I also want to know and tell my kids the name of those fish in Chinese, Malay and etc. Hope you guys have some info about this.