{"product_id":"sosei-caps-substrate-fertiliser-capsules","title":"Yokuchi Sosei Caps – Substrate Fertilizer 80 Capsules","description":"\u003cp\u003e\u003cstrong\u003eDual-action substrate fertiliser capsules that deliver nutrients directly to plant roots and restore substrate fertility over time.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e✅ \u003cstrong\u003eTracked UK delivery\u003c\/strong\u003e  |  ✅ \u003cstrong\u003eCarefully packed\u003c\/strong\u003e  |  ✅ \u003cstrong\u003eSuitable for Caridina \u0026amp; Neocaridina tanks\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYOKUCHI SOSEI CAPS are a professional substrate fertiliser in capsule form, combining two essential functions in a single product. The primary function is to deliver a complex of minerals and organic biostimulators directly at the root zone — where rooted plants absorb the majority of their nutrients, and where liquid column fertilisers cannot reach effectively. The secondary function is to actively maintain and restore the ion exchange properties of the substrate, preserving its fertility over extended periods and supporting stable, long-term plant arrangements.\u003c\/p\u003e\n\u003ch4\u003eFormula Highlights\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eDelivers nutrients directly to the root zone for maximum uptake efficiency\u003c\/li\u003e\n\u003cli\u003eMaintains and restores substrate ion exchange capacity\u003c\/li\u003e\n\u003cli\u003eContains a complex of minerals and organic biostimulators\u003c\/li\u003e\n\u003cli\u003eSupports stable plant arrangements over extended periods\u003c\/li\u003e\n\u003cli\u003e80 capsules — ideal for medium to large planted aquariums\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eDosing Instructions\u003c\/h4\u003e\n\u003cp\u003eApply capsules using tweezers or an applicator, placing them every \u003cstrong\u003e10–15cm near plant roots\u003c\/strong\u003e at a minimum depth of \u003cstrong\u003e4cm\u003c\/strong\u003e. Repeat application every \u003cstrong\u003e3–4 weeks\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch4\u003eIdeal For\u003c\/h4\u003e\n\u003cp\u003eMedium to large planted aquariums with established rooted plants — particularly those with demanding species such as Cryptocorynes, Echinodorus, and stem plants with strong root systems. Also effective for refreshing ageing substrates in mature aquascapes.\u003c\/p\u003e\n\u003cp\u003eAlso available in the 15-capsule starter format for nano and small aquariums. Part of the YOKUCHI system, available at AquaScape Design.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch4\u003eFrequently Asked Questions\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eAre SOSEI CAPS safe for shrimp?\u003c\/strong\u003e\u003cbr\u003eYes. SOSEI CAPS are placed deep in the substrate (minimum 4cm) and release nutrients slowly at the root zone. When used as directed, they do not significantly affect water column chemistry and are safe for tanks housing both Neocaridina and Caridina shrimp.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow deep should I place the capsules?\u003c\/strong\u003e\u003cbr\u003eA minimum depth of 4cm is recommended to ensure nutrients are released at the root zone and not directly into the water column. Use planting tweezers for precise placement without disturbing surrounding plants or substrate.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow often do I need to reapply?\u003c\/strong\u003e\u003cbr\u003eEvery 3–4 weeks. Regular reapplication maintains a consistent supply of root-zone nutrients and helps preserve the ion exchange capacity of the substrate over time.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I use SOSEI CAPS in a new aquarium setup?\u003c\/strong\u003e\u003cbr\u003eYes. They can be placed in the base layer during initial setup before covering with substrate, or inserted near plant roots once the aquarium is established. Both methods are effective.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow is this delivered?\u003c\/strong\u003e\u003cbr\u003eAll orders are dispatched from the UK with fully tracked delivery. Products are carefully packed to ensure capsules arrive intact and undamaged.\u003c\/p\u003e","brand":"Dennerle Plants","offers":[{"title":"Default Title","offer_id":57286667534668,"sku":null,"price":15.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1040\/8001\/5692\/files\/IMG-7746.webp?v=1776170900","url":"https:\/\/www.aquascapedesign.co.uk\/products\/sosei-caps-substrate-fertiliser-capsules","provider":"AquaScape Design-UK","version":"1.0","type":"link"}