Its a common Septic cleaner that does exactly what the Fluval product claims to do. I subscribe to your cleaning regimen and have for years however the only way to properly clean every nook and cranny is to remove lift tubes, decor etc and soak them in hot water. When I came across the use of RidX by aquarist I was surprised I hadn't heard it before. I'm just wondering how many members are avid users of the Fluval/RidX product and require feedback as to its viable use for me in the future. Also if its been determined that the two products are one in the same which to me is likely.
There are reports that it tends to raise ammonia levels and is offset with a dosage of bacteria at the same time. There are also reports that some have lost delicate fish like shrimp etc. Apparently since I'm not getting a lot of feedback this practice is not common and IF I'm even considering its usage to lean towards the Fluval product only for caution sake use a lighter dosage as any ammonia spike is prohibitive as far as I'm concerned. Its not expensive with a standard 1ml dosage per gallon and $10 for a 180ml bottle. RidX is also as inexpensive which really makes me go hmmmm.
Please don't take this article as a sales pitch by any means, I'm just trying to determine how widespread its use is among aquarist so I can consider it for my personal use.