Resun Bioclear Power Internal Filters

Resun BioClear Power Internal Filters (models BC300, BC450, BC650) are compact, affordable all-in-one submersible aquarium pumps + filters for freshwater fish tanks.They combine a quiet pump with 4-stage (4-in-1) filtration in one easy-to-install unit that sticks inside the tank with suction cups:Main features

• Mechanical — sponge + fine pad (catches debris)
• Chemical — activated carbon (removes odors, toxins, discoloration)
• Biological — ceramic rings (huge surface for beneficial bacteria)
• Aeration — built-in air venturi (adds oxygen) + spray bar for gentle surface agitation

BC 300
4.5W
300L/H
20-40L


BC 450
5.5W
450L/H
40-80L

BC 650
8.5W
650L/H
60-120L

Why people like them

• Very quiet “silent design”
• Adjustable flow & outlet direction
• Super easy filter cartridge changes
• Provides circulation + filtration + extra oxygen without needing extra equipment
• Budget-friendly (usually $15–30 depending on region)

Basically, it’s a simple “hang-it-inside-and-forget” pump/filter combo that keeps water clear and fish healthy. Great as a main filter for small–medium tanks or as extra filtration on bigger setup