Ja glasam za viseću apsolutno 
Nemam vlage niti prašine u vodi. Tu i tamo uleti neki kukac, u zadnje vrijeme većinom bubamare zbog te najezde koja je kod nas već mjesecima. Uskoro će zima pa će potući bubamare.
Što se tiče iskakanja riba, uskoro će mi doći 30ak rodostomusa ali sjetio sam se najjednostavnijeg riješenja dok se ribe ne naviknu kod mene, a to je plutajuće bilje.
Zbog nejednolikog grijanja prostorije hlapi mi dosta vode, 5-7l tjedno na površinu 90x45cm.
Meni ti pistija i vodena leća prekrivaju 30% površine, što smanjuje vlagu, i da ribice se fakat mogu sakriti pod time (trenutno imam 25 endlera- neki i križani s običnom reticulatom kaj ne bu dalo bebače), a što se tiče umakanja ruku u akvarij... Leća raste.. Kaj mi se skelji po rukama- vratim koliko mogu, a ostalo operem sa sebe. Ak' ti treba, predajem dalje Cveletovu.

Imam viiiiiškaaaaa....
S wikipedije:
Duckweed is an important high-protein food source for waterfowl and also is eaten by humans in some parts of Southeast Asia (as khai-nam). As it contains more protein than soybeans, it is sometimes cited as a significant potential food source.[1] [2]
The
tiny plants provide cover for fry of many aquatic species. The plants are used as shelter by pond water species such as bullfrogs and bluegills. They also provide shade and, although frequently confused with them,
can reduce certain light-generated growths of photoautotrophic algae.The plants can provide nitrate removal, if cropped, and the
duckweeds are important in the process of bioremediation because they grow rapidly, absorbing excess mineral nutrients, particularly nitrogen and phosphates. For these reasons they are touted as water purifiers of untapped value.[3]
The Swiss Department of Water and Sanitation in Developing Countries, SANDEC, associated with the Swiss Federal Institute for Environmental Science and Technology, asserts that as well as the food and agricultural values,
duckweed also may be used for waste water treatment to capture toxins and for odor control, and, that if a mat of duckweed is maintained during harvesting for removal of the toxins captured thereby, it prevents the development of algae and controls the breeding of mosquitoes. [3] The same publication provides an extensive list of references for many duckweed-related topics.
These plants also may play a role in conservation of water because a cover of duckweed will reduce evaporation of water when compared to the rate of a similar size water body with a clear surface.Čini mi se da imam 2 vrste podene leće u akvariju- sitnu tamnozelenu sa smeđim dnom i svijetlozelenu sa zelenim dnom koja je 2x veća i ima duge "konce".
Čekam da ih kornjače počnu žderat, pa nikak'...
Danas sam im stavila ovu Cveletovu i pokrila mi je 100% površine (a samo 1/2 sam stavila)- siroti kornjačor se prepao! Hvatao me za ruku kad sam micala višak da može udahnuti

A kornjačorova cura se sakrila ispod panja.
