Two plant problems.

First of all, I'd like to apologize for posting this because I know that there are threads stickie'd at the top. The thing is - those 101 plant problems are so similar that I can't really think of the true problem.

Here it goes. I have 1 Malawi Gold plant and some bagseed plants and a Morning Glory. The glory is fine, if anyone's concerned. ^^
Problems are with bagseed plants and Malawi. The bagseed plants have yellow spots on them and some spots of those spots are starting to dry and fall off.

And the problem with Malawi (not only, actually.) is (I think) some kind of critter problem. I tried looking with a strong magnifier but couldn't see shit. Pardon my french.

Well, anyway here is my setup:
250W MH
250W HPS
10.0 UV-B
Big, 'home' fan
And a heater with thermostat.

And here's the pics (if you guys need more, let me know):

umm all depends how many plants u got man but it looks like it could b two probs.its either nut burn or ur lite is to close them.

It's not the light because the leaves that are yellowish/brown are more on the bottom. The top leaves are fine.

And what about the holes in the leaves? I've checked them all over - no critters that I could find. But it looks like some critter is having a buzz from my ladies leaves((

well the tips show brown and crumblind so its nutes bugs or idk,have u lookedunder the leafs?cuz mites hide under there to avoid the light.