Hi, complete noob to hydro and growing plants here. Two questions.

I am growing an avocado and I checked the roots today and it looks like something is growing on it, is it mould? If so do you have any advice to combat it? It otherwise looks healthy and appears to be growing well.

Avocado roots

closer roots

I’m also growing coriander for the first time, it’s mostly growing out rather than up which was not expected! Any advice about this? The leaves are also a bit discoloured which is the same for other plants sharing the same nutrient solution so I’m planning to tinker with it as I’m guessing it’s an electrolyte balance.

coriander

Happy to provide details or other pictures as needed!

Thanks in advance!

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