[k9oky]

OK thanks for the advice.

My soil mix has no addiditives (eg dolomite lime, bonemeal etc) in it, is this OK? If not then why do people add these kinds of additives?

So I am not supposed to be washing through every time then fertilising every water. It will not take long for salt build ups to occurr if I am fertilising every water - I guess?

Perhaps there could be too much salt in the medium which is preventing the roots from absorbing Potassium. Which could be why I kept getting burned tips and edges because the leaves couldnt transpire as much water? But since I was washing-through each time surely that would remove these salt build-ups.

Are there disadvantages of washing the plant through? Maybe disturning root system?

Does my 3 day watering cycle sound about right for these pots and light and size of plants? Any suggestion about a fertiliser schedule?

The temperature I can not do anything about can keep it stable during the day at 80 degrees. Will this be OK is there a lot more chance of getting funghi attacks? Are there any problems with growth at these temperatures? It is just not possible for me to fit an extraction unit there.