Cambridgeshire has hard, alkaline tap water. A number of iron salts such as iron phosphates and hydroxides are essentially insoluble. This can potentially cause issues with lack of iron availability for plants in an aquarium. In both the Fireplace Aquarium and the Shrimphaus, modified estimative index fertilising provides plenty of phosphates, and the alkaline tap […]
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The newly planted vallis seemed to be doing poorly with the leaves suffering structural damage and since vallis is thought to be sensitive to damage from liquid carbon I stopped the daily dosing of EasyCarbo. Stopping the daily liquid carbon is something I had been thinking about doing anyway, on the grounds that with injected […]
Read more →“Estimative Index” aquarium plant fertiliser method and strategy The ‘estimative index’ (EI) is a fertilizer concept originated by Tom Barr where the general idea is to never have plant nutrients be limiting in the water column. Plants will grow and generally outcompete algae (so the theory goes). In practice, while I’m sure the outcompeting part […]
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