Every softwater shrimp keeper knows the problem: active soil substrate is essential for lowering pH and stabilizing carbonate hardness. But after a few months or years, the buffering capacities of the substrate are inevitably exhausted. Previously, this meant that the entire aquarium had to be painstakingly emptied, animals evacuated, and the tank completely re-established. With the ShrimpPuddle Soil Background L, this enormous stress for you and your animals is finally a thing of the past!

Why the Soil Background L is a must-have for your tank:

• Effortless Substrate Change: The box is discreetly placed on the back wall of your aquarium and filled with active soil. Has the soil been used up after some time? Simply remove the box, empty it, fill in fresh soil, and hang it back – your remaining hardscape and plant layout remain completely untouched.
• Permanently Stable Water Values: By easily introducing fresh soil into the background system, you keep the pH value and carbonate hardness permanently in the ideal range, without ever having to replace the deep-seated main substrate again.
• Excellent Flow-Through: The fine slits are precisely spaced at 1.5 mm. They guarantee optimal, continuous flushing of the soil by the filter flow, ensuring that the water-influencing properties of the substrate are fully utilized.
• Unobtrusive, Slim Design: The box is designed to be extremely flat and fits snugly against the aquarium pane. As soon as mosses, stem plants, or ferns grow in front of it, the system almost invisibly disappears into the background of your aquascape.
• Optimized Volume for Nano & Standard Tanks: In size L, the box offers sufficient capacity to reliably buffer water values in aquariums with a volume of up to 60 liters.

⚠️ Important Safety Note for Your Animals:

To protect the sensitive biology and beneficial filter bacteria in your aquarium, please never replace 100% of the used soil abruptly. We strongly recommend gradually refilling the box with fresh soil over several weeks after emptying. This prevents a sudden pH crash and gives your shrimp enough time to adjust to the altered water parameters.

Product Details & Technical Specifications:

• Scope of delivery: 1x ShrimpPuddle Soil Background L including suitable mounting system
• Slot spacing: 1.5 mm (perfect for standard granulations; not suitable for fine powder soil)
• Recommended for: Caridina breeding tanks (e.g., bee shrimp, Taiwan bee shrimp) and sensitive aquascapes up to 60L
• Material: Aquarium-safe, dimensionally stable, and absolutely water-neutral special plastic