The JUWEL fine filter sponge is primarily used for the biological filtering of your aquarium, making it an essential component of the JUWEL filter system.
The fine pore structure gives a very large surface area, guaranteeing slow and even water flow conditions. This means that it is particularly suitable for biological filtering in the an aerobic area.
The open pores of the JUWEL filter sponge were made without the use of chemicals, meaning that there is no residue.
Characteristics of the JUWEL fine filter sponge:
Optimum biological filtering characteristics
Homogeneous structure, guaranteeing even flow conditions
No chemical residue
Suitable for use in freshwater and saltwater aquariums
Sizes Available:
M (Compact) 9,5 x 9,5 x 4,5 cm; for BioFlow 3.0 Filters (Rio 125,180,240, Vision 180, Trigon 190, Lido 120 Aquariums)
L 12,5 x 12,5 x 5 cm; for BioFlow 6.0 Filters (Rio 300, Vision 260 Aquariums)
XL 15 x 15 x 5 cm; for BioFlow 8.0 Filters (Rio 400, Vision 450, Trigon 350 Aquariums)
Seachem PhosGuard
Removes silicate and phosphate
Spherical for optimal hydrodynamics
Irreversible binding
Description
PhosGuard™ rapidly removes phosphate and silicate from marine and freshwater aquaria. It is not recommended for phosphate buffered freshwater. PhosGuard™ is highly porous for high capacity and bead-shaped for optimum water flow.
Aluminum Oxide, Soluble Aluminum, and Coral Toxicity
In recent years, there has been speculation that aluminum oxide based phosphate removers like PhosGuard™ release aluminum into the water and subsequently damage corals. The evidence to support this claim was largely anecdotal.
So, through a series of controlled experiments in both freshwater and saltwater, we intended to address both the question of aluminum solubility and aluminum toxicity. The results of these experiments show that under reef conditions (pH near 8) there is no detectable soluble aluminum released from alumina. Under conditions of low pH and high dosage levels, soluble aluminum can be released from alumina; at three times the label dosage rate, we detected 0.2 mg/L aluminum at a pH of 5.3.
Additionally, aluminum oxide is not easily absorbed into the cell to cause negative reactions. Even at three times the dose of PhosGuard™, soft-bodied corals such as Sarcophyton remain unaffected.
For the full report on this study, click here.
Directions
May generate heat on initial contact with water. Pre-wet by adding to a double volume of freshwater, followed by a rinse. For best results, PhosGuard™ should be rinsed before use and placed so as to maximize the flow of water through it but not so that it tumbles against itself in flow. It may be used in a canister filter, media chamber, box filter, or any high flow area of a trickle filter. Use of a filter bag is recommended. Use 85 mL (1/3 cup) for every 200 L (50 US gallons) saltwater or 400 L (100 US gallons) freshwater.
Leave product in place for 4 days, then test phosphate or silicate concentrations w