Fluval 3 Stage Internal Filters
Fluval underwater filters with three stage filtration are ideal for use in fresh, marine or reptile environments.
Stage 1 foam removes large particles.
Stage 2 poly/carbon cartridge traps fine debris, improves water clarity and removes impurities.
Stage 3 Biomax provides optimal biological filtration efficiency
Fluval U Series Cartridge Replacement
Replace 1 Poly/Carbon cartridge every 2 weeks.
Replace Alternate Foam Pads every 3-6 months.
Replace ½ quantity of BIOMAX nodes every 5-6 months
How To Replace Fluval U Series Cartridges
Do not replace all filtration cartridges at the same time. Alternate filter cartridge changes so that some older cartridges remain in use. This ensures the re-seeding of beneficial bacteria, so that colonies discarded with older cartridges will be replaced by vigorous new ones. To enhance bacterial action, pour a dose of Nutrafin Cycle Biological Aquarium Supplement onto your filter cartridges each time you change the media. |
