Oh man, you are having the worst luck! We have learned to have a redundant pump on hand because we've had them fail, and it's just a very hard situation. When we stocked up for this first hatch I ordered duplicates of everything; we hooked up 3 pumps for 3 airstones literally. My husband reminded me of the UPS battery backup he got at Best Buy for his very first tank. They are all lessons learned the hard way, and it always seems that there's another permutation of calamities that you have not thought of. I'm glad you caught it in time.
We are now DPH 4 and 5 with around 30 larvae, no losses since the first night/day that I've seen. We have lots of peppermint shrimp babies that we're also giving a shot, I mean, why not? I've not slept in 5 days and am completely delirious. I get up at 3am and start the routine, siphon, test ammonia, nitrite, nitrate, PH, SG, checking the drip bucket, feeding rotifers and tinting, documenting everything. We are already learning a ton just this go around and I think are developing good habits. Fingers crossed .. we have started tiny sprinkles of TDO and that's of course when I ran out of Hanna ammonia reagent A - bought reagent kit at an LFS, which is a 1.5 hr drive, no small feat with 2 hours sleep, only to get home and find the kit expires next month and the reagent turned the sample dark brown and is defunct. Glad I picked up a simple Salifert ammonia test while I was there .. again .. redundancy.
Yesterday we found that it appears TDO complete throws the Hanna ammonia test, it went over 2.50 (the max), even 10x diluted. Yet the Seachem badge was yellow and nitrite zero. RODI tested fine at 0 so the checker was working. We dosed a ton of Erase CL and waited. 3 hrs later it tested zero and it never showed in nitrate/nitrite readings today. Superweird. I talked to Hanna support and they said it's likely the chemical that gives the fish color in the TDO, but the "scientists" are supposedly getting back to me. It's all fascinating to me.
A knowledgeable breeder told me we likely will get platinums, misbars, standards and picassos. I love watching their behaviors. I worried yesterday that they were in a corner by the walls. I thought OK, too much light but dimming it made no difference. Then I noticed they were fat with silvery bellies and super active, picking at the walls and chasing each other off. I think it was a good hunting spot! They are all heart stopping moments and I hold my breath every time I look into the tank. Fingers crossed!
Little video for you from today. Please post a picture of your balis and the fry!!