It was iron gluconate that killed (nearly) my Ceratopteris. Flourish Iron is iron gluconate (according to Seachem) and that is what I used. Listening to those who say iron is needed for red leaf plants, i used it in the 90g tank with my red tiger lotus. I was also using Flourish Comnprehensive Supplement. The floating Ceratopteris which has been thriving began melting; the Echinodorus began developing brown patches which is caused by an excess of iron. I had changed nothing but the iron, so I stopped the extra iron. After several weeks, the daughter plants began growing and spread across the surface as before, and the iron excess in the Echinodorus abated. I subsequently began using Flourish Tabs next to the red tiger lotus tubers and this certainly improved their appearance and growth.A comprehensive has a do little amount of IG. Have you tried Iron gluconate? It's not like other irons like ferrous in health food stores..that is so-so. Garden iron too is only fair.
The Dr. does say..decent tap water,and water changes will provide the others,I will go one further on him and say gluconate acts as a way for plants to pull out those other 17 floating around much better.
btw He says in one about GH..you might like finding out what he thinks of it. All his videos are short.
I also would strongly endorse it for non Co2 low tech. Nothing makes as huge a difference for them as IG..and the right lights.
I think you actually mean Flourish Excel. it will kill Vallisneria, and if overdosed it will kill fish, plants and bacteria. It is glutaraldehyde.Flourish was the culprit. It has been known to take out all the Vallisneria ..melt it. Flourish is an algaecide...that I wouldn't trust with sensitive plants. Ceratopteris is a fern, Ferns of all types love iron.
I have three types of Lotus...never seen them do so well.
Good, I have flourish comprehensive supplement, thanks for the infoI think you actually mean Flourish Excel. it will kill Vallisneria, and if overdosed it will kill fish, plants and bacteria. It is glutaraldehyde.
Flourish Comprehensive Supplement is a mix of all essential plant nutrients (except hydrogen, oxygen and carbon) in proportions as required by plants. It is a supplement, which is an important distinction.
There is no doubt in my mind it was the iron. The plants showed the symptoms of iron excess. It gradually began a couple weeks after the additional iron, it stopped a few weeks after the iron was no longer being added.Noted.
But the iron wasn't killing the plants from my view. A combo or other factors ? I don't know.