Top positive review
4 people found this helpful
Sparkling water for large fantail goldfish
on 17 December 2013
I've always used these polishing pads in my 305 filter along with Opti-Carb, carbon, biomax and other media, and the job they do is amazing. As well as the 305 external, I also have a U4 internal filter and still the amount of muck these pick out as a result of my two fantails is incredible. It is like an easy way to pick up/throw away pure mud when it's time to change them.
The only reason I haven't given 5 stars is I find when they are dirty/ready for changing they can substantially reduce the flow of the filter almost to nothing; in the beginning I almost lost my boys to this because I couldn't see the reduced water flow in the tank and so thought my filter was functioning normally. But basically it's then like switching your filter off and the water quality rapidly deterioriates. I solved that issue by taking some good advice and putting a plant into the flow that moves about, so I can now see any impact. But even with this issue, I wouldn't take them out and be without them - whilst it makes you pay attention to your filter regularly, for goldies that's no bad thing. And I always look at the mud trapped in them and think without them, all that would be in the tank with my poor boys.
My advice is these are a means of keeping beautiful sparkling water for conscientious fish keepers who properly maintain their filters/water quality. But if you're buying them because you're lazy with your water and filter care and think this would be a good way to buy you further time between changes I'd advise against them. If you're not good on your tank/filter maintenance you'll be more likely to miss the reduced filter flow, which could rapidly be fatal to your fish.
Personally, I couldn't be without them (and I think my boys would say the same thing!)