Need help with my plants. and advice. 40G tanks <Image included>

Most of those plants seem to be low/mid light and on the slower side for growing. As for plant suggestions it would help to tell us if your injecting co2 or not. Also the way you are adding co2.

I think a nice offcenter focal point with groupings of plants & rocks instead of just random placement works well. Several of the same kind of crypts near each other, a cluster of stems, say bacopa, or vals rather than lined up. It'll help hide equipment better too.

It's hard at first to have enough of 1 kind when you want to try everything that might work. I tend toward this collecting but my favorite tanks have more of fewer kinds.

Your substrate is ok but may be harder to plant thin stems or tiny plants. Marine sand sometimes has coral, read the bag to see if it will alter pH & hardness. I have trouble with very fine sand. Eco complete is very nice & easy to plant but mostly I use pool filter sands.

CO2 seems to be an art, LOL, I don't have it :huh:

If u want a good solid planted tank Co2 in my personal opinion is a must.. a cheaper way of Co2 to be delivered into your tank would be probaly to get this http://www.fosterandsmithaquatics.com/product/prod_display.cfm?c=3578+3747+8981&pcatid=8981 id get 2 of these seeing that u have a 40 gallon tank. I use one of these and they work great ! Second i would get some kind of flourite or live rock for substrate because it looks like u just have reg aquarium rock in there. other small hints or pointers is place the heater in the middle part of ur aquarim instead of on the side if u can.. then have ur filter on the lowest flow setting possible because Co2 doesnt need a high water flow because it will disrupt the co2 propcess... the lighting that u ordered seems good ..GOOD LUCK WITH EVERYTHING ! hope this helped out a little

I would suggest more background plants. Maybe some Val's or just some tall crpts or stem plants. Other than that it looks great. Oh and put a background on the tank it will hide the equipment behind and draw more focus on the plants and fish.