Problems with tank....lost on solution
I have a low tech 55 gallon planted tank that I use dry ferts on & root tabs every 1-2 months. I use the lower version of the ei and its been working great for over 3 months and then a month ago I ran into a problem...
All my swords started having leaves die (by die I mean thinning out, & getting clear)....over 50% of the leaves from each one all over the tank over a month's time...started adding more ferts...no difference...changed lighting...no different. Ammonia, Nitrite, nitrate are always kept in check and have not been an issue.
Along with the plants problems fish have been dying. 1-3 a week for the past month. I've used different illness treatments for the fish that are safe for plants, its not like the fish are showing signs though, they are just dying (not old fish either)
I'm just lost as to what the problem could be..something that doesn't show up on the basic tests.
I thought contamination, but I have done at least 5 50% water changes over the last month so I would think any contaminants would be diluted down to nothing by now, but still fish are dying and plants are dying.