What are /r/saltwateraquariums' favorite Products & Services?

From 3.5 billion Reddit comments

Check this out at Amazon.com Lominie Aquarium LED Light,... https://www.amazon.com/dp/B08Y8B8J1D?ref=ppx_pop_mob_ap_share I have this on my sump and it would be better on a "show" tank than in my sump cause of all the blues

Just a thought (not really 40 but those that have 12) smaller tanks are amazingly hard to balance, so for those that are thinking that little 10 or all in one 12 or 24 its actually harder IMO than a 40 or 50.

https://www.amazon.com/New-Marine-Aquarium-Michael-Paletta/dp/1890087521/ref=sr_1_2?dchild=1&keywords=the+new+marine+aquarium&qid=1586056571&sr=8-2

(Amazon actually lists it as a different publisher but mine has a tree on the spine that says Microcasm) IMO all Microcasm books that I have (maybe 5) are next level.

I bought this scraper from Amazon, and it works really well.

https://www.amazon.com/gp/product/B07886LQJ1/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

Keep in mind, it is very sharp. Good luck!