I've just tried my first ever batch of cider....I've pressed the apples from my garden and have 25 litres of juice in a fermentation bucket and have added a 5g sachet of cider yeast. The airlock is in place and after 24hrs everything is looking ok. The hydrometer reading was 1450 which I believe is ok but the juice is really dark and I've been advised that I should have added a campden tablet 24hrs before adding the yeast. Is there anything I can now do to reduce the colour or improve anything?