Aluminium plant going downhill

[Marb67]

Marb, good news that it's trying to survive. But I don't think damp on its surface will help it in that condition. So I wouldn't spray it. I don't know what your feeding regime is. If you really want to feed it, feed the soil, but only a very dilute and small amount.

But plants absorb seaweed etc through the foliage much quicker.

Foliar feeding is the technique of spraying the leaves of a plant with a dilute mixture of water and fertilizer. As opposed to traditional fertilizer, which is absorbed by the roots and stem, the spray is taken directly by the foliage

[Snoop Puss]

It could burn any very young leaves. Or just add more damp to any bits that are unhealthy. Your plant, your call, Marb. But I wouldn't do it. I'd do nothing and just let it be for a bit.

[Marb67]

The reason I suggested seaweed is because of it's anti-fungal properties but like you say, perhaps leave it dry.