Yuma colony probs...????

[bitis316]

.....I have a colony of purple/blue/and pink yumas that I have had for 3 years ....The mom has always done fine...In the last 6 months she has turned into a colony of at least ten babies the size of dimes.....All was good, and then for some reason they all including the mom, except for two babies started to look like they were shriveling and changing to a lighter color...I haven't changed anything.....i am baffeled....All my other yumas including, mysolid pinks, blues,oranges, and greens are fine...Just this 1 rock has began to "Malfunction"HELP!!!!

 

[bitis316]

Were is Pee Wee Herman.....HELP

 

[wantsalotta]

start with a water change...

 

[chrisstie]

How old are the bulbs you are using over the tank?

 

[herostar]

Same thing happened to me. I had a rock with 25+ yumas for about 5 months (they grew from 20 to about 30) and then one day they all of a sudded started dieing. Everything else in the tank was growing fine, but the yumas just died. Now there are only 2 left.