Fluval 404/405/406/407 Foam Block 2 Pack iq power filter Best if calcium & carbonate

Best if calcium & carbonate additives are added on alternate days or at least 30 minutes apart

Thereafter

treatment tank or for observation of fish

You can achieve these so-called tropical blackwater conditions without any trouble and lastingly with sera super peat

Fluval 404/405/406/407 Foam Block 2 Pack iq power filter Best if calcium & carbonateFluval Foam captures large particles and debris for effective mechanical filtration, which is the crucial first stage in the filtration process. Custom fit to prevent debris bypass, the foam has a pore size that allows efficient water flow with less clogging for long lasting filtration. The foam also enhances biological filtration. Key Features : Captures large particles and debris for effective mechanical filtration Performs key role in first stage