Nano Tech Bio Spheres 1 kg/40 – 44 Pieces Bio Balls for Aquarium Filter Sump

Good quality

Very porous and became full of good bacteria very quickly.

I keep very messy predators so nitrites, nitrates and ammonia were always a fluctuating matter. After buying the balls the fluctuation has calmed down massively. They are a great product and can’t knock them very much worth the money!

Love these balls great for good bacteria growth. Nice clear water and these do NOT change ph values

Good

Great product well made these do not look like they will break down over time .

Best fillter media you can get

Expensive, but doing the job great in my sump.

Tutto ok le utilizzo in una sump in acquario marino da più di un anno sembrano pulite e colonizzate da spugne e batteri..

高い

efficiency and agility I recommend the store, top quality product.

I like these so much that i purchased another box both are the 1 kl box I use these for my overstock 120 gal south american cichlid tank that water parameter use to fluctuate a lot and after a month in the canister ..i have 2 canisters i put 1 kilo of bio spheres in each and my water seems more stable dealing with the bio loads Spheres are dense and heavy and are about 1.5 inch diameter...

Ottimo prodotto, molto resistente non si sbriciola. Per romperlo dovete usare un martello. Utilizzato come primo stadio di filtrazione meccanico e biologico primo cestello affiancato da eheim substrat pro e seachem matrix/denitrate secondo e terzo cestello in un filtro aquael ultramax 2000