I did the same with two separate reactors but put 2/3 sulphur and 1/3 aragonite in each and circulation in series with maxi jet - was working well until I inadvertently knocked tube off maxi pump and didn’t realize for a day or two. When I realized that, my reactors were black inside and smelled awful. I did not restart circulation for fear of tank crash. I ditched all sulphur- should have rinsed and restarted. Nitrates now 30-40 and I’m redoing the setup with one reactor sulphur and other oyster grit with a sicce pump. I hopefully will get success with this.I built a sulfur reactor using two Used red octopus reactors I picked up . Saved $$$$.
1 reactor for sulfur the other for ARM. Water from reactor1 (sulfur gets sent to reactor 2 (ARM) and then back into the sump. Been on my 300 build now for 2 months, so far so good....