While we are the topic of filters, why didn't you like about the Sun Sun in comparison to the Fluval??
I'm curious on this as well... I have a Marineland C-220 which the SunSun's are based off (I think???) sitting in storage and was thinking of using it to solely run a reactor.
A few things...
The quick disconnect always threw a lot of water out, even after closing it. This water would then enter the filter head, and actually would be held in the filter head. After removing the filter from under the tank for cleaning I would need to tilt the head of the filter and drain out the water.
The UV is something I used a lot in the beginning, but probably have not turned on in the past 18 months. The bulb itself was a bit frustrating to work around, as I would need to lift the head completely off (vertically) before tilting to the side. The made the water in the head even more annoying.
Now, what I really like about the Fluval that the SunSun did not have was the ability to pull the mechanical filtration out without removing all the bio media. There is a vertical section that is the entire height of the filter that holds the foam. This is super convenient and easy to clean. The bio media side also has the media cages easy to remove with a central red bar that allows every cage to be removed togeher. Pretty cool.
Downside of the fluval is the low amount of media it can hold relative to its flow rate. The SunSun you can pack a TON of media into it. I am willing to live with this one, as I actually like the smaller size of the Fluval for moving in and out of the stand. The lower amount of media is just soemthing to be aware of.
Finally- I do not believe the SunSun brand is UL listed... That is something that the risk management side of my brain did not like once I learned that. Not saying something DID go wrong, but if it did, that would not be good... All done with those filters now though!
I did keep the SunSun spray bars and filter intakes with surface skimmers. IMO, those are some of the best in the game (if not going with glass).
The above may not be deal breakers for some, but for me, they just kinda felt cheap as well. The Fluval just feels quality, and for my two display tanks (which is all I have) I wanted to feel good about all my equipment.
Any photos / designs info on your setup?
I'm a Cerges noob as I've only ever built Griggs style reactors. I'm thinking of swapping over (currently weighing out the benefits vs each other)....
Forgot to mention that was a great update post above. Good info on the lights and some good photo's!
Let me see what I can find in my pictures, and I'll get back to you on that one.