Abyzz A200 pump and Royal Exclusiv Red Dragon 3 230W pumps currently running on my 375 on 2 closed loops.
So far I am very happy with both. I had an issue with the Abyzz pump in the beginning which turned out to be my fault. It seemed I needed more outputs on my closed loop. Not having enough caused the pump to vibrate a lot. Once I found out who was running support for the Abyzz I was able to get new parts to re-plumb it. CoralVue is a great company and currently running support for Abyzz.
I currently have both pumps hard plumbed into 2 separate closed loops without any noise issues. The only issue I have currently is with the plumbing. Sadly I found some leaks that I am fixing and one new ball valve stopped opening and closing. Once it gets warm out in the spring or summer I will drain the tank to fix it.The support for the Red Dragon is also great, I needed some parts and they got them to me right away so I can replumb the pump.
I currently have the A200 set to random mode going between 60-100%. It randomly changes the speed and various times. It has a wave mode that I have not tried yet but may in the future. The Red Dragon is set to 160W for 16 hours and 230W for 8 hours. I can not do as much with the controller as I can for the Abyzz. I wish I could control the flow more. I need a second controller (apex) to do that.
Red Dragon 3
Red Dragon open
RD3 Impeller Housing
Both are great pumps and quiet.
The controller stopped working after only about 3.5 Weeks. I took me several days to figure out who support was but once I did they had to contact Germany to find out what to do. They then sent me a new controller but it was the wrong one. They then sent me a 2 controller. It works but was damaged in shipping.
Re-installed Dec 20, 2017
July 8, 2018 – Return pump changed out to an Abyzz A200 Pump.
3-20-2019 – Update, the pumps are doing great, my only complaint is the Red Dragon pump will start making noise when any detritus build up. The Abyzz pumps have never been open or cleaned and are still running quietly. I have to open and clean the Red Dragon pump every few months and clean it.