Crypt Problem

[nsean]

I have just under 3wpg, it is in Schultz Aquatic Plant Soil. I dose Flourish 2x a week, Excel every other day. pH 7.5, ammonia 0, nitrite 0, ammonia 0-10. I also gave some pottasium last weekend.

The leaves of my crypts and some of my HP have turned brown and as you can see are shrivelling up. Any ideas what could be wrong?

Note: The plants up front have only been in the tank for a few days, so for the sake of this they can be ignored. Sorry about the poor photo quality.

Thanks
Sean

 

[Philosophos]

High light, insufficient fertilization, and no compressed CO2 to go with it is going to cause you more problems than just that crypt. You should either get compressed CO2 or reduce your light; both if that 3wpg is coming from T5 with good reflectors. You should also probably look into more serious fertilizer. DIY will cost less than commercial by far.

The issue with the crypt is some kind of nutrient deficiency, though figuring out which one is a little difficult from the picture you've given. Either way, Once you've done all of the above and have your methods set, things like that crypt won't be a problem.

-Philosophos

 

[nsean]

The lighting is spiral CFL, which I have heard puts out less than the predicted WPG.

 

[Philosophos]

Ah, spiral CF. In that case 1.5-2wpg T8 equivalent for which it wouldn't hurt to have some DIY helping things along if the tank isn't too big. I'd still at least use some NPK dosing to go with the rest of what you've got. Maybe check your local tap water and see if you've got sufficient Ca and Mg.

-Philosophos