[ZISS BREEDER BL-3T or ZISS EGG TUMBLER for corydoras eggs]

Not positive @ryan s. But I would think you wouldn’t need to because of the constant flow you would receive from the egg tumbler itself. But could you set that tumbler up in a separate tank (quarantine tank) then use methylene blue in the water? Perhaps. I say quarantine tank because I believe methylene blue will kill beneficial bacteria if you were to try using it in your show tank 

[ZISS BREEDER BL-3T or ZISS EGG TUMBLER for corydoras eggs]

Thank you both for the insight! Getting both may be on the pricey side but after watching and reading multiple reviews I’m definitely going to get both. I’m looking forward to the project, plus the sight of fry never gets old personally! Lol. Thanks again @s1_ and @cory !!!

[ZISS BREEDER BL-3T or ZISS EGG TUMBLER for corydoras eggs]

Thank you! Not a bad idea to maybe get both of them. Seems like they both can do the trick, but also have more benefits down the road raising them. I appreciate the help!!!

[ZISS BREEDER BL-3T or ZISS EGG TUMBLER for corydoras eggs]

I currently have a few schools of Julii, Paleatus, and bronze corydoras in my one tank laying eggs on the glass. I'd like to go ahead and try to hatch and raise them. I'm wondering which, if either of them, would be best to hatch the eggs, the Ziss Breeder BL-3T or the Ziss Egg Tumbler?  Thank You