Looking at all the pictures id say you have a very rough male. Hes trapped very hard. The first fish had a secondary fungal infection, ive had success with similar on l024 treating with acriflavin. I would try bathing the second fish in furan2 once a day for 3 days. Hope this helps

Following on from the breeding report i published.

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Between days 12 and day 17 i lost around 20 fry. All started with the same symptoms which i have seen in other fry. Where the stomach/yolk begins to swell. The fish become a loner from the pack and occasionally dart ...

Or. If you are using r.o let the ph come down to around 5.9 over about a week. Then increase it instantly to around 7. They well be trapping within minutes.

L253

1 male

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1 female

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Tank:
5x2x2 community setup.

Filtration:
fx6, xxxl sponge filter, 2000lph canister. 2000lph powered.

Heat:
2x 300w heaters at either end of the tank.

Flow:
Moderate. Top left to right. Back left ...