The Fluval 206 is a 06 Series canister filter. Fluval's 07 Series media page documents which replacement media is listed for this filter.
Listed by Fluval itself, or by another document published by the filter's manufacturer.
Also documented for: Fluval 207 Canister Filter, Fluval 306 Canister Filter, Fluval 307 Canister Filter
“Bio-Foam, 2-Pack Compatible With: 206/306 Canister Filter 207/307 Canister Filter; embedded product data on the same page: item_id "A222", item_name "Bio-Foam for 206/306, 207/307 Canister Filter, 2-Pack"”
Also documented for: Fluval 207 Canister Filter
“Bio-Foam, Value Pack For 206, 207 Canister Filter Compatible With: 206 Canister Filter 207 Canister Filter; embedded product data on the same page: item_id "A335", item_name "Bio-Foam for 206, 207 Canister Filter, Value Pack"”
Also documented for: Fluval 106 Canister Filter, Fluval 107 Canister Filter, Fluval 207 Canister Filter
“Bio-Foam+, 3-Pack Compatible With: 106/206 Canister Filter 107/207 Canister Filter; embedded product data on the same page: item_id "A236", item_name "Bio-Foam+ for 106/206, 107/207 Canister Filter, 3-Pack"”
Also documented for: Fluval 207 Canister Filter, Fluval 306 Canister Filter, Fluval 307 Canister Filter
“Bio-Foam Max, 2-Pack Compatible With: 206/306 Canister Filter 207/307 Canister Filter; embedded product data on the same page: item_id "A188", item_name "Bio-Foam Max for 206/306, 207/307 Canister Filter, 2-Pack"”
Also documented for: Fluval 106 Canister Filter, Fluval 107 Canister Filter, Fluval 207 Canister Filter
“Quick Clear, 3-Pack Compatible With: 106/206 Canister Filter 107/207 Canister Filter; embedded product data on the same page: item_id "A242", item_name "Quick Clear for 106/206, 107/207 Canister Filter, 3-Pack"”
OEM lists this media as compatible with all canister filters
Also documented for: Fluval 106 Canister Filter, Fluval 107 Canister Filter, Fluval 207 Canister Filter, Fluval 306 Canister Filter, Fluval 307 Canister Filter, Fluval 406 Canister Filter, Fluval 407 Canister Filter
“BIO-FX 2 L Compatible With: All canister filters All Power filters; embedded product data on the same page: item_id "A1458", item_name "BIO-FX, 2 L"”
OEM lists this media as compatible with all canister filters
Also documented for: Fluval 106 Canister Filter, Fluval 107 Canister Filter, Fluval 207 Canister Filter, Fluval 306 Canister Filter, Fluval 307 Canister Filter, Fluval 406 Canister Filter, Fluval 407 Canister Filter
“BIO-FX 5 L Compatible With: All canister filters; embedded product data on the same page: item_id "A1459", item_name "BIO-FX, 5 L"”
Products that a seller or third-party maker states are for this filter. These are claims by the seller — not OEM endorsements, and not tested here.
No third-party compatibility claim was recorded for this model.
Recorded as unknown rather than guessed.