
Originally Posted by
mpmistr
I would separate and treat this frog individually and then do a massive 75-100% water change in the main aquarium. I would then do 50% water changes once per week for two weeks and then add the other frog back in one it has healed. I would then monitor the water chemistry like a hawk to see if something is "off". I know from keeping 3 female ACF in a 40B, they are quite capable of making the tank dirty, even with the Eheim 2217 canister I use, which is basically an overkill filter.
This 20G Long may not be "overstocked" but it may be on the brink. It is also not wise to densely stock X. Laevis, because bacterial infections can happen when there are too many housed in one enclosure. How overstocked you are also depends on how much filtration you have going, what filter is being used here? Also you have to keep in mind once you add sand and decor, you don't really have 20 gallons any more, it could be as less as 15 gallon once the tank is set up. You could pick up a 40B at Petco, I think they are running a $1/gallon sale. $40 for that tank is well worth the money, I paid a lot more for my 40B and if I could go back in time I would have hit up that Petco sale! a 40B is actually 45 gallons, more than double your current volume.
Some additional info.. I read your post again, it said you used AmQuel, which is actually fine but you are throwing money away. I would pick up Seachem Prime, I know I have probably mentioned Prime enough to warrant a check from Seachem BUT it is a lot cheaper than AmQuel (because it is concentrated and you wind up using a LOT less of it).
Second and more importantly, you mentioned you use an "Ammonia Remover".. what product is this, what is in it, and why use it? This could be part of the problem, I can tell you from fish/aquatic frog keeping that the less you up in your water the better off you are, if you have proper husbandry and conditions in your aquarium you absolutely do not need this product.
Last thing I will mention, as far as your testing, are you using a liquid based kit or a dip strip kit? Just wondering because those strips are notoriously inaccurate and while liquid test kits aren't perfect they are much better than the strips. I would invest in the API Freshwater Master Kit, buy it online though because in pet stores they sell it for $30+ and I buy mine online for $20 (try Amazon).