breeding convicts cichlids

My Convict cichlid had their first batch of frys and they are disappeared in wiggler stage.. and it’s been one month they didn't lay second batch off egg.. what could be the reason. (Its a 20 gallon tank with two pairs of convicts and both layed eggs at same time and same result for both the...

My pair of convicts have been breeding in my 55 gallon community tank with 2 fire mouths and a jack Dempsey. The first batch of fry got eaten by the fire mouths, and the second batch died when I tried to use a gravel vac to move them to the breeder net. The convicts are laying a 3rd batch of...