Hi Ben,

You can use a slow release fertilizer, but you should supplement with a liquid. I, as well as most people here, prefer Foliage Pro 9-3-6, as the slow release does not provide micros. I usually use a medium strength solution (20-25 mL) per 5 gallons every watering.

You only need to add gypsum when you don't use Foliage Pro since that includes calcium.

-Tom

This post was edited by tom1328732 on Fri, Nov 14, 14 at 21:13

Check with your water supplier on its content of calcium, most water surces contain adequate calcium . --S-

Hi,

So I am thinking of the following in terms of food/fertilising:

- Gypsum
- Osmocote Citrus (http://www.tuigarden.co.nz/product/scotts-osmocote%C2%AE-fruit-citrus-trees-shrubs)

For trace elements anyone use seaweed stuff?

http://www.yates.co.nz/products/fertilising/organic-based/natures-way-bio-gold-liquid-plant-food/

or

http://www.seasol.com.au/

Would I need to feed with anything else? I can't seem to find a fertiliser with 3-1-2 ratio so far.

Epsom Salt to complement the Gypsum.

Josh