sera pond bio humin, 5000 ml

Strong sunlight in ponds without natural shade may lead to serious problems. Due to direct light filtration, sera pond bio humin provides support in such cases.

The aggressive UV radiation is reduced to an acceptable amount. This also effectively prevents algae multiplication. Furthermore, fish swimming at the surface are being protected against painful sunburns.

Sun protection for ponds:

• UV Blocker
• Prevents cloudiness
• Amber colored, crystal clear water due to natural humic substances