Ravenswing
Member
Hi all!
Sorry, long story...I turn to you with this (at least to me) mysterious case what began last September-October as we started collect rain water for our five aquariums. This was because we have a bit nasty tap water with pretty hight TDS (450-530uS/m) with lots of NaOH and NaCl, other tap water prams GH 4-5, KH 3-4, pH 7,2-8 or more. I bought RO-unit at christmas, after that 50-70% RO, rest from tap. We wanted to keep some more sensitive shrimps and fish species and thought that lowering TDS would be a good idea. TDS was in tanks about 850uS/m when we started the project. We came down to 400uS/m within two months. Problems started, lets say about three weeks after first rain water addings. First cories died. Since that we have lost about 15 C similis (the whole group I had...), over 10 C paleatus, few C concolor (10 left, oooh..not these....I love them!!!), 10+ C sterbai (some of them my boy had grown himself, so sad), 10+ C aeneus... quite many, eh? But however, not a single C trilienatus, Albino Cory (donnou if aeneus or paleatus), C pygmaeus or C hastatus wich I find weird since they are kept as sensitive in general. Shrimps are doing just great, before rainwater/RO we lost nearly all bees, but now they are flourishing. However, we havent lost not a single "swimming" fish, just cories. Plecos are fine, loaches are fine...just cories died. And they just_ die. Some of them turned to be a bit skinny and weak, but most of dead ones we have found...just dead. Yesterday they seemed to be fine, eating etc and next day...dead. Both young and many years old one specimens thou I have a feeling that most of dead ones are older ones. All this happend in two different tanks, not just on one. BTW, I have given worm medicin (Jungle Paracite Clear) in case of worms since some of them lost weight hence good appetite. No improvment.
Any ideas what is going on? I found sons old and huge C paleatus dead this morning. He seemed to be totally fine outside. We`d like to get new cories, but is it worth of it? As fas I can see, nothing else changed in tanks but the water. I use salts for plants so GH/KH is/has been 1-2. Son is really upset, Im confused and sorry.
Sorry, long story...I turn to you with this (at least to me) mysterious case what began last September-October as we started collect rain water for our five aquariums. This was because we have a bit nasty tap water with pretty hight TDS (450-530uS/m) with lots of NaOH and NaCl, other tap water prams GH 4-5, KH 3-4, pH 7,2-8 or more. I bought RO-unit at christmas, after that 50-70% RO, rest from tap. We wanted to keep some more sensitive shrimps and fish species and thought that lowering TDS would be a good idea. TDS was in tanks about 850uS/m when we started the project. We came down to 400uS/m within two months. Problems started, lets say about three weeks after first rain water addings. First cories died. Since that we have lost about 15 C similis (the whole group I had...), over 10 C paleatus, few C concolor (10 left, oooh..not these....I love them!!!), 10+ C sterbai (some of them my boy had grown himself, so sad), 10+ C aeneus... quite many, eh? But however, not a single C trilienatus, Albino Cory (donnou if aeneus or paleatus), C pygmaeus or C hastatus wich I find weird since they are kept as sensitive in general. Shrimps are doing just great, before rainwater/RO we lost nearly all bees, but now they are flourishing. However, we havent lost not a single "swimming" fish, just cories. Plecos are fine, loaches are fine...just cories died. And they just_ die. Some of them turned to be a bit skinny and weak, but most of dead ones we have found...just dead. Yesterday they seemed to be fine, eating etc and next day...dead. Both young and many years old one specimens thou I have a feeling that most of dead ones are older ones. All this happend in two different tanks, not just on one. BTW, I have given worm medicin (Jungle Paracite Clear) in case of worms since some of them lost weight hence good appetite. No improvment.
Any ideas what is going on? I found sons old and huge C paleatus dead this morning. He seemed to be totally fine outside. We`d like to get new cories, but is it worth of it? As fas I can see, nothing else changed in tanks but the water. I use salts for plants so GH/KH is/has been 1-2. Son is really upset, Im confused and sorry.