I'll take the blame!!!!
You got it going on there Dale!
MB is methylene Blue.
1-3 drops per g.
H202 can be used instead (1-3 ml per g).
H202 is daily,mb can be one and done.
Mb has to be removed when eggs become wigglers.
Waterchanges and carbon will help.
If the eggs and wigglers are 'good' and stay safely away the hob can run.
A sponge type prefilter will help and like the sponge filter(air) may house some food for fry??
It will keep them from getting sucked up when you use it eventually again.
I would use just air for first 2 weeks of free swimming..
I use these on my small HOBs
http://www.kensfish.com/aquarium-supplies/aquarium-filters/elite-replacement-sponges-2pack.html