Hi ppl, I'm using OTTO Arowana Safety as an anti-chlorine for my 4ft tank with a 10" ornate. Just checking, ornates prefer slightly alkaline water, correct? pH 7-8? Cos the lfs guy insists this OTTO product is okay for bichirs as it works as an anti-chlorine and pH buffer. But the back of the box says that it "makes the water quality becomes soft and low pH environment that Arowana likes". Also, it says that it's good for plecos, and plecos like acidic water correct? So who's right? Should I use a different anti-chlorine agent? No ill effects on the ornate whatsoever,in fact she's quite fat and active now..Thanks everyone =)