Hi all,
As the title suggests, I have a situation with brook. In one room in my basement I have two separate systems. The first is a 240g and a 100g tied into a large sump and the 2nd is a 220g with a large sump.
The 240g system got a case of brook. I caught all fish out, dipped the worst affected fish in 1g/1ml heated and aerrated 37% formalin solition for 60 mins then had all fish in a 75g qt where I followed up with 1ml / 10g, daily, 7 day in tank treatment. That was roughly 3 weeks ago and all fish are doing well, symptom free while that system goes follow for 6 weeks.
My dilemma is the 220g started showing symptoms of brook and I'm out of qt space so I decided to do an in tank treatment (tank's future plans is to be a reef but new tank so currently fowlr - considerable amount of rock). I calculated I have 262 total gallons, minus displacement so went with 24mls 37% formalin daily for 7 days. Symptoms went away. Following the 7 day treatment I did a 20% wc, turned on a new lifeguard aquatics 55w uv @ 300 gph and started running copper. On the 2nd day I woke up to a very hurting tomini tang which I netted out and did the hr long dip with. It died later that day. I also noted that I had a cleaner shrimp in the system I couldn't catch which survived the 7 day in tank treatment (I couldn't catch it no matter what I tried) while the small "invasive" serpant star population died off. I concluded that the formalin must have been absorbing Into rock and substrate bringing down the potency. I then decided to do another 7 day round bumping up my dosage 50% to 36 daily mls.... first night was sleepless but all fish are accounted for and midas blenny that was flashing like crazy has stopped.
This is up to today. My question is, do I stay the course with the 36mls daily for 7 days and is it even possible to eradicate an active system of brook without any follow with the use of formalin?
Would love to hear from Jay and @Humble.
Thank you everyone.
As the title suggests, I have a situation with brook. In one room in my basement I have two separate systems. The first is a 240g and a 100g tied into a large sump and the 2nd is a 220g with a large sump.
The 240g system got a case of brook. I caught all fish out, dipped the worst affected fish in 1g/1ml heated and aerrated 37% formalin solition for 60 mins then had all fish in a 75g qt where I followed up with 1ml / 10g, daily, 7 day in tank treatment. That was roughly 3 weeks ago and all fish are doing well, symptom free while that system goes follow for 6 weeks.
My dilemma is the 220g started showing symptoms of brook and I'm out of qt space so I decided to do an in tank treatment (tank's future plans is to be a reef but new tank so currently fowlr - considerable amount of rock). I calculated I have 262 total gallons, minus displacement so went with 24mls 37% formalin daily for 7 days. Symptoms went away. Following the 7 day treatment I did a 20% wc, turned on a new lifeguard aquatics 55w uv @ 300 gph and started running copper. On the 2nd day I woke up to a very hurting tomini tang which I netted out and did the hr long dip with. It died later that day. I also noted that I had a cleaner shrimp in the system I couldn't catch which survived the 7 day in tank treatment (I couldn't catch it no matter what I tried) while the small "invasive" serpant star population died off. I concluded that the formalin must have been absorbing Into rock and substrate bringing down the potency. I then decided to do another 7 day round bumping up my dosage 50% to 36 daily mls.... first night was sleepless but all fish are accounted for and midas blenny that was flashing like crazy has stopped.
This is up to today. My question is, do I stay the course with the 36mls daily for 7 days and is it even possible to eradicate an active system of brook without any follow with the use of formalin?
Would love to hear from Jay and @Humble.
Thank you everyone.