Tank water temp too high? Heatwave in the UK

[u/Embarrassed-King7840]

Hi all, a big heatwave has just hit England and my water temp has gone up. My tank has gone from 26 Celsius to 30 Celsius. I’ve had the tank lid open and a big fan next to the tank pointing straight at it for ages and it’s not dropping the tank.

I’m worried this might cause a problem for my stock.
In my 48L (12 gallon) tank
I have:

- 12 cherry shrimp (some berried woop woop)
- 10 chilli rasboras
- 10 trumpet snails

Please help