bubbler temp will be the same as the ambient temp in the growspace.
U need to keep that below 30c
Say u maintain a cab temp of 25c - ur solution temp will also be 25c which is fine as long as u have blacked out the buckets & are using opaque tubing for ur airlines.
your soil will also be the same temp as the ambient temp of ur growspace, so u won't notice any difference when u switch to bubblers
