Acurel LLC Nitrate Reducing Media Pad Aquarium and Pond Filter Accessory, 10-Inch by 18-Inch

These lower the ammonia levels and polish the water. Cut to fit cost effective

This stuff works fast. I had murky fish tank water with high nitrates. no matter what I tried to fix it with. I cut a square of this and put in my hob filter and water is crystal clear and nitrates are normal !

I was having a problem with high ammonia and after many water changes and chemicals, it seemed to barely be budging. I found these and thought I’d give it a try. It’s been in my filter for 2 weeks now and my ammonia level has consistently stayed at zero! Super easy to use-just cut it to size and slide it in your filter. I am now using it in both of my aquariums. I will definitely be buying it again and will be using these for a long time.Note: It does state on the package it doesn’t help with a current ammonia spike but will help prevent spikes. I found this not to be true because within 24-36 hrs after placing it in my filter, my ammonia levels went from dangerously high to zero. Amazing stuff!!

I currently own a Penguin Biowheel 150 HOB filter on my 29L aquarium. Refusing to use Marineland's inadequate cartridge filter, I purchased this to fit into the same slot as the cartridge. I managed to cut it just so right and in addition I added Seachem's Purigen and Matrix Carbon. This combination did prove to make my tank's water quality pristine, and the nitrogen cycle was kept in check.However, I've recently purchased a huge bag of filter fiber and noticed much better results for less money. You see, although the media pad is awesome, ultimately the shape I cut leaves an unusable amount behind. The Penguin 150 is unforgiving to media pads. Due to the amount of water flow, Acurel's pad eventually clogs sooner than I'd expected potentially leading to frequent and expensive replacements. Whereas Filter Floss/Fiber can be shaped to any sized compartment with ease and longevity polishing my water perfectly.I refuse to fully denounce Acurel's medi pad. It's just not appropriate for my specific setup. I rated 4 stars for it's great filtering ability...minus 1 star for it's lack of long term and diverse filter type utilization.Simply put, I've moved on to better!

Put a slice of this in my power filter unit and overnight dropped the nitrates to zero, they were terribly high, up over 300 something before, blood red color with my test kit, and a dozen 15% water changes later still blood red, (hence the over 300 estimate). and, I normally don't do water changes like I should. You'll want some nitrates for live plants so I would guess, taking the pad out after you reach an acceptable level.

I was able to actually cut out 4 sponges to fit the FX6. Well worth the money even if it doesn't reduce nitrates. Better than some of the other sponges that Hagen wants you to use like the carbon sponge or prefilter nonse.

I cut this pad into smaller pieces to fit into my filter. It’s a lot cheaper. However, it has lots of sand no matter how many times I wash and rinse. I will switch back to the original brand.

I've been pretty happy with this product. It's fairly easy to cut to the shape I need for my filters. It's improved the water quality of my aquarium and thus the health of my fish.

received nitrate pads, and currently using

I have a 125ltr tropical tank. Planted and heavily stocked. I test the water weekly and change 30-50%. Test routinely shows 20/30ppm of nitrate. I installed a double layer of this filter pad to the top tray of my Fluval 207. After a week , nitrate levels show the same as always, no reduction at all. I will carry on with this pad, as it looks like it will work ok as a purely mechanical filter but it has not worked as claimed. I will report back if the situation changes. Disappointed.Ok, pads have been in a few weeks now, still no reduction in nitrates, a bit higher if anything! May work for you but has been a waste of time and money for me.

Very nice quality- working very well. Cut to size easily with household scissors

Cant honestly say it made any differenceI had a slight rise in nitrate so bought these pads and after a week there was no difference so had to buy another product insteadWont b buying again !!!

Working great to replace AquaClear 110 default foam filter. Just cut it into half and fit it into the HOB. I can see water quality improvement just over one night. Let's see how long it can last.