The best replacement for bio wheel is canister filter.

The best alternatives to bio wheel are rated as following:
★★★★★  canister filter
★★★★★  power filter
★★★★  aquaclear
★★★  canister
★  aqua clear
★  undergravel filter
  bio balls

Your alternative for bio wheel is not listed? Suggest!
Speaking about bio wheel, one probably shouldn't forget about canister filter.

Other search terms related to bio wheel and their ratings are:
★★★★★ canister filter
You have in mind a companion for bio wheel and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of bio wheel in all years. Click on graph for more.
bio wheel
canister filter
power filter