INFO/BACKGROUND REQUESTED BY ADMIN: (keep in mind i really am panicking and have no idea what i am doing to get rid of this, nor am i sure it's columnaris... please be nice and helpful
i know I've made some mistakes)
TYPE OF FISH AFFECTED-> 4 assorted fancy guppies.
SYMPTOMS -> white patches (not like fungus), fin and tail rot, popeye in both eyes (in one guppy, who has no patches or rot). i think it's columnaris.
PARAMETERS -> Ammonia: 0ppm, Nitrite: 0ppm, Nitrate: 10ppm
TANK SIZE/ TIME ESTABLISHED -> 10g tank, it's been cycled for about 6 months. it was a rough start, fish in cycle. didn't know what i was doing. much has been learned.
TYPE OF FILTER -> the Aqueon HOB
filter that comes with the 10g Aqueon starter kit. i can find the user manual if it's that important. no carbon filter, sponge used instead. pothos has been growing in the filter for about 4 months. rinsed it out to increase water flow a couple weeks ago with old tank water. ended up getting clogged, has to take it apart and get impeller going again. working great for two weeks since all that.
LIVESTOCK-> 6 cory catfish (3 pymgy and 3 "dwarf") and 10 guppies, 2 pregnant females and 8 juvenile fry (i think about 3 months old)
LAST WATER CHANGE/ SCHEDULE ->water change a week ago, about 50% because i had fallen a bit behind and nitrates were a little high for my liking. i do a water change whenever nitrates exceed 20ppm.
NEW ADDITIONS -> a pair of red cobra guppies were added about a week and a half ago. i got them from a very reputable local aquarium but they were new and not fully treated by them yet. the male had minor finrot which i figured was healing. the female looked fine. well i'll never make that mistake again.
DIET/ DIET CHANGES-> baby brine shrimp and daphnia alternated. fed every other day. (fed one dose of Everything Aquatic Anti-Parasite Quad Flake in a quick panic but then i realized this is bacterial and stopped that immediately)
so heres the story:i have guppies. as you know they multipy quickly. once my tiny 10g tank started getting full i stopped any attempt to save the fry and began cycling a 29g tank. in the meantime more fry were born, but only 2 or 3 would survive each time. i have two mature females that alternate giving birth every two weeks or so. no adult males. i also have 2 nebula steel fry that i purchased from a local aquarium. there were 16 other fry in this tank along with 6 cory cats before i could get my 29g cycled. then i switched over 8 of the juvenile fry to the 29g tank. so 8 currently in the 29g and 10 in the 10g, plus 6 tiny cories.
well, this was the setup i had when i found red cobra guppies at this aquarium i visit a lot. i had been wanting some cobra guppies badly, but noticed the males seemed to have deteriorated fins. but otherwise healthy looking. i had kanaplex at home, an antibiotic, and figured it would be fine to just add a pair of red cobras to the 10g and treat all the fish for bacterial infection just in case. (i don't currently have a hospital/quarantine tank set up, and didn't want to introduce any bacteria to the 29g). this was stupid in retrospect. within a couple days the female developed saddleback (white patch like a saddle on her back), and a day or two after the male died as well. despite a full 3 day treatment of SeanChem Kanaplex. I ordered Furan-2 immediately. i've started the Furan, the tank has been dosed 2 times now and today i will do a 25% water change as instructed. I added 2 tbs of aquarium salt to the tank (and then learned this isn't great for catfish ugh) a couple days ago as well. I've done two doses of Lifeguard.
3 days ago, one of my blonde tequila sunrise (i think) juvenile guppies developed a white patch around his dorsal fin. it's only gotten worse and now he is very clamped and barely swimming. yesterday when i checked on them, one of my 2 adult female guppies has popeye in both her eyes. it looks like she is wearing white magnifying goggles. today she is having a hard time staying upright.
I am at a lot for what to do here. i don't want to lose all the guppies in my 10g. but they are starting to drop like flies. i can't transfer any healthy ones to the 29g because i don't want to risk infecting those (they seem healthy and happy). i read later that furan-2 and kanaplex should be used together? should i do a big water change and start over? should i start cycling a new tank and turn this one into a hospital tank and keep medicating? switch them over to a clean tank and medicate and aerate and add prime/ do big water changes?
what's the best way to save these fish. I'm on a budget but could afford a new filter, i have a spare ten gallon. i have lots of medications. if anyone knows how i can get rid of this columnaris, and save most of my fish, PLEASE EXPLAIN HOW!