So my 10.5" jardini and equal sized emperor snakehead had to be moved into a 30 gallon hospital tank to treat for velvet transferred by another fish. the snakehead has been clear of any spots for a few days but the jardini still has a couple individual spots of velvet on his tail and I hate seeing them in such a small tank, my question is would I be able to move the snakehead into my 180 gal (which is disease free and has been for nearly 3 years) without a high risk of transferring velvet to the fish in that tank or should I just wait.