7 months ago I purchased an IM Nuvo 15 on sale for $119. Great little tank that I’m enjoying.
https://www.bulkreefsupply.com/15-nuvo-fusion-aio-cube-aquarium-innovative-marine.html
I have always kept nano reefs over the years and have had no complaints about Biocube or IM. I’ve got a 32 gallon Biocube as well as the 15 gallon IM I posted the link for.
Red Sea is top of the line and you’re going to pay for that, like buying a BMW. I don’t necessarily think it’s the greatest option. In the past few years there have been lots of horror stories about Red Sea tanks bursting. Give it a simple google search to find lots of stories.
Unless I’m wrong Red Sea has not released any information on the problem. They also have not made it right to the reefers who spent an arm and a leg on their product and had their tank burst out of the blue.