Green bits in hot water (please help!)

[MrsAFlowerpot]

Hi all, when running the bath for DD tonight I realised there were green bits in the water - running the hot tap in the bathroom and kitchen sinks show the same. There is nothing from the cold water so I'm guessing this is from the hot water tank. Is there anything anyone can advise?! Please please please.

As a background I'm not usually this panicky, but moved in 6 weeks ago to a new area far from family and friends, know no one to ask their opinion, DH away for the week, DD has been v poorly recently and had to call a plumber out on Sat for an (unrelated) problem with the toilet cistern. Arghhhhhh

What sort of green bits? Like mould or more squidgy foamy bits?
We had green lumps of foam after a new hot water insulating cover thingy was added to our hot water tank. Clearly they'd got some bits into the water tank itslf - it was affecting the flow. I kept them to prove what the problem was and the plumbers fixed it.
If it's mould, not sure what to suggest - do you have a landlord to ring?
or a plumber via CheckaTrade or somesuch?
Where's pigletjohn when we need him!

Doesn't seem like mould (although I'm rubbish at these things !)

When i touch it the bits do turn a bit slimy (eg when pushed across sink leaves a green line)

Thank you for the response...any more much appreciated!

it is usually copper deposits that cling to the insides of the pipes, and are dislodged by plumbing work, or may have been lying at the bottom of the tank and dislodged if the water was turned off. Run the taps hard, turn them off, repeat, and it will mostly get flushed out. Depending on how much work was done you might get more or less. Sometimes you get gritty black bits dislodged if you have iron pipes. They are not especially harmful, but probably best not to eat them.

If they float, and will burn, then they will be bits of foam insulation.

If you have modern quiet ballcocks in your WC cisterns, there is a chance bits of grit will make them drip or stick, in which case they just need to be taken apart and rinsed in clean water and put back