“Easy to use and adds great surface area for the good bacteria.”
“Bigger than expected as was expecting to be smaller hence the nano name. Still did the job.”
“Very satisfactory purchase”
“These look great, perfect size and look like they will do the job perfectly. not in my tank yet as it課ｪs still being set up.”
“Cannot rate as yet, not yet used.”
“Cheapest Ive been able to find. PurChased for a fluval filter.”
