Did you actually catch the fish in the act of nibbling? Or do you have holes in your plants and think they did. Some nutrient deficiencies will cause holes in your plants and ragged edges. Good light is not enough..you have to have good other stuff too. I'm just getting the hang of this fert dosing stuff. Let me look up some articles that I have bookmarked and get back to you.
I use the Seachem line of products, and some other things. And when I do it right and don't slack off they look great.
Here is an article that goes over how different nutriend deficiencies manifest themselves:
http://www.thekrib.com/Plants/Fertilizer/nutrient-deficiency.html
this is an excellent website, and tom Barr and greg watson are the greatest. they both post on here, and maybe they will check out this thread. I got lucky and got some help from Tom on mine.
http://www.barrreport.com/forums/forumdisplay.php?f=12
They are very friendly and very helpful and knowledgable. tom has an estimative index that he uses to dose tanks. My brain doesn't grasp fully how he does it, but I did a lot of research before I went planted.
Another thing you need to look at is your substrate. Some plants get nutrients from the substrate and some from the water column, so you have to have nutrients in both places. I have a substrate with flourite in it, mixed with sand. I also use seachem's root tabs. Your Swords would benefit greatly from both of these. I then dose with Flourish excel..which is a bioavailable source of carbon that you use instead of using CO2. I also use flourish fertilizer, flourish iron, and then some other things: potassium, which is from NuSalt, phosphate from green lite stump remover, and phosphate from..hmm..fleets enema. Now let me look and see where the article is for this...
:thud:..what an idoit ,I forgot....the articles are stickeys right at the top of this forum. Read them. Plantbrain is Tom Barr...:bowing: the great plant guru. If you read his stuff and have questions, pm him, he'll answer. there's some other great people out there too...I joined his site to get his newlsetters.
