My Sensi Bloom part B has ooze in it

I've never used any of Advanced Nutrients' stuff before.. I have their pH Perfect Sensi Bloom A+B and a 6 bucket + res DWC setup running 15-20 gallons total.

Is a bit of floating slimy/sludgy stuff normal for this particular 2 part bloom base or should I trade it for a new bottle? It was only in Part B, and is fresh from the store. Not being new to DWC, I have this fear of sludgy stuff.. but if it's ok then I'll just filter it out.

Just to be clear, the floating ooze was in the concentrate bottle, not my system.

Thanks!

Give it a good shake mix a gallon or so of the a and b see if your ph is within the ranges the ph perfect should come out at. At full strength the last time I tested it came out at 5.6

i occasionally see this from gallon to gallon I run through, but personally I haven't had any probs.

Ok, I'll just work with it and filter it out of the solution I mixed. I did shake it quite well when I measured it out. Some kind of cap scum or something I suppose. It appears to do what it says so far. Thanks!