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Holes in plants

PostPosted: Wed Jan 25, 2017 12:03 pm
by Photoman
plt_0159.jpg
What causes holes in plants? I have a Fluvial LED on 8 hours. Fluvial 209 filter, use, Envy, Propel, excel, It is 37 gal tank. There is some algae on the glass. I used plastic scrapers and scrubs. They don't work. I want to use a razor blade see if that works.

Re: Holes in plants

PostPosted: Wed Jan 25, 2017 12:15 pm
by Diana
Those big holes are likely from something physically damaging the leaves. Snails, some Loricariads or other fish.
The leaves may have weak spots perhaps from nutrient deficiency then the snails can grab onto those weakened cells then get going into the firmer (healthy) cells.
Some Loricariads can rasp the leaves a bit too hard, though usually they don't actually rasp away the whole leaf. Again, once the damage is started, snails can move in.
A few fish eat leaves. More often the damage is from the outside edge, not starting on the inside.

I would look into the fertilizer schedule.
Low potassium is a very common cause of tiny holes in the leaves. This gives snails their start. Aquatic plants use quite a bit of potassium.
Too-high trace nutrients (trace minerals, or micro-nutrients) can trigger problems, perhaps even interrupt the plant uptake of other nutrients. Thus, something that looks like a nutrient deficiency may actually be an excess of something else.

If you suspect a nutrient deficiency, then add that nutrient. If this does not fix the problem, then research what might be locking up that nutrient, and alter the way you are dosing.
Example: Mixing phosphorus fertilizer and iron fertilizer can make a precipitate that plants cannot use. So fertilize with phosphorus and iron on different days.

Re: Holes in plants

PostPosted: Thu Jan 26, 2017 11:38 am
by Crazygar
If you have aggressive Algae Eaters these should be your problem, but to me, looks like Nutrient deficiency. Looks like a lack of Iron, but before dosing, do testing. Make sure you levels are in accordance.

Gary